The body of missing British backpacker Amelia Bambridge has been found at sea, Cambodian police have said.

A search team came across the body floating in the Gulf of Thailand more than 30 miles northwest of the island of Koh Rong, where the 21-year-old was last seen a week ago.

“Based on the identity given to us, the tattoo on her body and the clothes she was last seen in, we believe it is her,” said Lieutenant General Tea Sokha, deputy commander of Cambodia’s navy. He said authorities had been tipped off about the body’s location by fishermen who first spotted it.

Detectives have previously said they feared Bambridge, from Worthing in West Sussex, may have drowned.

The body will be taken to the mainland port city of Sihanoukville for formal identification and autopsy to establish cause of death.

Amelia Bambridge: British backpacker missing from Cambodia resort Show all 11 1 /11 Amelia Bambridge: British backpacker missing from Cambodia resort Amelia Bambridge: British backpacker missing from Cambodia resort Officials and rescuers meet during a search operation for British backpacker Amelia Bambridge, 21, from Worthing, West Sussex, who went missing after a beach party in Cambodia on the island of Koh Rong in the early hours of 24 October 2019. Sihanoukville province authority police via AP Amelia Bambridge: British backpacker missing from Cambodia resort In this photo released by Cambodian National Police on October 27, 2019, officials and rescuers meet during a search operation for the missing British woman, Amelia Bambridge in Koh Rong island in Sihanoukville province. - Cambodia deployed soldiers, police and divers to scour an island popular with backpackers after a British tourist went missing there four days ago, an official told AFP on October 28. (Photo by Handout / cambodian national police / AFP) (Photo by HANDOUT/cambodian national police/AFP via Getty Images) HANDOUT Cambodian National Police/AFP Amelia Bambridge: British backpacker missing from Cambodia resort In this photo taken October 27, 2019, Sihanoukville Governor Kuoch Chamroeun (C) and officials look over the shore of Koh Rong island during a search and rescue operation for missing British woman Amelia Bambridge. - Cambodia deployed soldiers, police and divers to scour an island popular with backpackers after a British tourist went missing there four days ago, an official told AFP on October 28. (Photo by Marady / AFP) (Photo by MARADY/AFP via Getty Images) MARADY Marady/AFP via Getty Images Amelia Bambridge: British backpacker missing from Cambodia resort Undated family handout photo issued by the Lucie Blackman Trust (LBT) of missing British backpacker Amelia Bambridge, 21, from Worthing, West Sussex, who was last seen on the Cambodian island of Koh Rong late on Wednesday night. PA Photo. Issue date: Monday October 28, 2019. Staff at Police Beach, a private venue that stages regular events, found Ms Bambridge???s purple rucksack, containing her purse, phone and bank cards, the following morning. See PA story MISSING Cambodia. Photo credit should read: Family Handout/LBT/PA Wire NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder. Family Handout/LBT Family handout/Lucie Blackman Trust/PA Amelia Bambridge: British backpacker missing from Cambodia resort In this photo released by Cambodian National Police on October 27, 2019 foreign divers prepare to search for the missing British woman, Amelia Bambridge in Koh Rong island in Sihanoukville province. - Cambodia deployed soldiers, police and divers to scour an island popular with backpackers after a British tourist went missing there four days ago, an official told AFP on October 28. (Photo by Handout / cambodian national police / AFP) (Photo by HANDOUT/cambodian national police/AFP via Getty Images) HANDOUT Cambodian National Police/AFP Amelia Bambridge: British backpacker missing from Cambodia resort Undated family handout photo issued by the Lucie Blackman Trust (LBT) of missing British backpacker Amelia Bambridge, 21, from Worthing, West Sussex, who was last seen on the Cambodian island of Koh Rong late on Wednesday night. PA Photo. Issue date: Monday October 28, 2019. Staff at Police Beach, a private venue that stages regular events, found Ms Bambridge???s purple rucksack, containing her purse, phone and bank cards, the following morning. See PA story MISSING Cambodia. Photo credit should read: Family Handout/LBT/PA Wire NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder. Family Handout/LBT Family handout/Lucie Blackman Trust/PA Amelia Bambridge: British backpacker missing from Cambodia resort Undated handout photo issued by the Lucie Blackman Trust of Amelia Bambridge, 21, who has gone missing in Cambodia. She was last seen by friends on the island of Koh Rong on Wednesday. PA Photo. Issue date: Saturday October 26, 2019. See PA story MISSING Cambodia. Photo credit should read: Lucie Blackman Trust/PA Wire NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder. Lucie Blackman Trust Family handout/Lucie Blackman Trust/PA Amelia Bambridge: British backpacker missing from Cambodia resort Undated family handout photo issued by the Lucie Blackman Trust (LBT) of missing British backpacker Amelia Bambridge, 21, from Worthing, West Sussex, who was last seen on the Cambodian island of Koh Rong late on Wednesday night. PA Photo. Issue date: Monday October 28, 2019. Staff at Police Beach, a private venue that stages regular events, found Ms Bambridge???s purple rucksack, containing her purse, phone and bank cards, the following morning. See PA story MISSING Cambodia. Photo credit should read: Family Handout/LBT/PA Wire NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder. Family Handout/LBT Family handout/Lucie Blackman Trust/PA Amelia Bambridge: British backpacker missing from Cambodia resort Undated family handout photo issued by the Lucie Blackman Trust (LBT) of missing British backpacker Amelia Bambridge, 21, from Worthing, West Sussex, who was last seen on the Cambodian island of Koh Rong late on Wednesday night. PA Photo. Issue date: Monday October 28, 2019. Staff at Police Beach, a private venue that stages regular events, found Ms Bambridge???s purple rucksack, containing her purse, phone and bank cards, the following morning. See PA story MISSING Cambodia. Photo credit should read: Family Handout/LBT/PA Wire NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder. Family Handout/LBT Family handout/Lucie Blackman Trust/PA Amelia Bambridge: British backpacker missing from Cambodia resort Undated family handout photo issued by the Lucie Blackman Trust (LBT) of missing British backpacker Amelia Bambridge, 21, from Worthing, West Sussex, who was last seen on the Cambodian island of Koh Rong late on Wednesday night. PA Photo. Issue date: Monday October 28, 2019. Staff at Police Beach, a private venue that stages regular events, found Ms Bambridge???s purple rucksack, containing her purse, phone and bank cards, the following morning. See PA story MISSING Cambodia. Photo credit should read: Family Handout/LBT/PA Wire NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder. Family Handout/LBT Family handout/Lucie Blackman Trust/PA Amelia Bambridge: British backpacker missing from Cambodia resort Undated family handout photo issued by the Lucie Blackman Trust (LBT) of missing British backpacker Amelia Bambridge, 21, from Worthing, West Sussex, who was last seen on the Cambodian island of Koh Rong late on Wednesday night. PA Photo. Issue date: Monday October 28, 2019. Staff at Police Beach, a private venue that stages regular events, found Ms Bambridge???s purple rucksack, containing her purse, phone and bank cards, the following morning. See PA story MISSING Cambodia. Photo credit should read: Family Handout/LBT/PA Wire NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder. Family Handout/LBT Family handout/Lucie Blackman Trust/PA

Bambridge’s sister, Sharon Schultes, said the family had received “the most horrific confirmation” that she “is no longer with us”.

Writing on a family fundraising page, she wrote: “It breaks my heart to let all my close family and friends know the horrendous outcome that we didn’t want.

“Now we have to get our Amelia back home to England so we can lay her beautiful soul to rest and to remember the wonderful life she lived.”

Bambridge was last seen at a beach party in the early hours of 24 October. Her bag, still containing money and a mobile phone, was later discovered on a rock near the shore and her passport was found in the hostel room where she was staying after she failed to check out.

About 150 people joined an intensive land, sea and air search for the backpacker, with divers, navy and police drafted in.

Bambridge’s parents and brother travelled to Cambodia last week to help look for her, and said they feared she had been abducted or become lost in Koh Rong’s dense jungle.

Police have questioned more than 20 people, some of them reportedly local bar workers, about her disappearance but no arrests have been made.

The Foreign Office said it had staff on Koh Rong who were in contact with the Cambodian authorities responsible for carrying out the identification of the body.