Relatives of deceased Al Qaeda leader Osama bin Laden are believed to be among four people killed when a private jet crashed in southern England.

A spokeswoman for Britain's Hampshire police service told Reuters there were no survivors of the crash.

"There were four people onboard, including the pilot," Olga Venner, acting chief inspector of Hampshire police said.

Footage of the aftermath of the crash showed plumes of black smoke rising into the sky and several cars on fire in the outdoor area of British Car Auctions, where vehicles were parked awaiting sale.

Former Al Qaeda leader Osama bin Laden's Saudi Arabian family have vast business interests. ( Reuters )

"I saw it when it had just happened, and could see the plane and cars in flames," Andrew Thomas said, who was buying a car when he witnessed the accident.

"The plane nose-dived into the cars and exploded on impact."

Without confirming the identities of the victims, the Saudi Ambassador to Britain, Prince Mohammed bin Nawaf Al Saud, offered condolences on the embassy's official Twitter account to the bin Laden family, a prominent Saudi Arabia clan with vast business interests.

"His royal Highness Prince Mohammed bin Nawaf bin Abdul Aziz, the ambassador of the Custodian of the Two Holy Mosques to the United Kingdom, offered his condolences to the sons of the late Mohammed bin Laden and their relations for the grave incident of the crash of the plane carrying members of the family at Blackbushe airport," he said in the tweet.

The Saudi embassy said it was working with British authorities to investigate the incident and to ensure the speedy handover of the bodies for funerals and burials in the kingdom.

The Saudi-owned al-Hayat newspaper, citing a statement by the Saudi General Authority of Civil Aviation (GACA), said on its website that the Embraer Phenom 300 with three passengers and the pilot crashed during takeoff from Blackbushe airport.

GACA said in a statement that the plane was registered in the Gulf state and that it would work with British investigators to determine the cause of the crash.

The statement did not identify the victims, but some Saudi media suggested on social media or on their websites that they were relatives of Osama bin Laden, who was shot dead by US forces in Pakistan in 2011.

It was not immediately possible to confirm the reports.

British media, including the Daily Mail website, said the plane had been carrying relatives of Osama Bin Laden. It said the plane was registered in Saudi Arabia and had originated in Milan, Italy.

The Hampshire police service spokesman said an investigation into the causes of the incident had been launched.

Reuters/AFP