A Utah couple celebrating their 25th wedding anniversary on a dream tour of Europe are among the victims of the London terror attack.

Kurt Cochran, 54, died after being thrown over Westminster Bridge onto a walkway beneath it when ISIS terrorist Khalid Masood mowed him down in his Hyundai 4x4.

His 46-year-old wife Melissa was also struck. She lay frozen on the bridge among postcards from a toppled tourism stand with blood pouring from her head while strangers consoled her.

Mrs Cochran was taken to hospital in the UK where she is being treated for a broken leg and rib.

They were the first people hit when Masood, who later died in hospital after being shot by police, embarked on his murderous path across the bridge where at least ten more innocent pedestrians were hit.

Chilling photos of the couple at the bridge swept the world as news of the attack spread.

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Kurt and Melissa Cochran from West Bountiful, Utah, were among those who were run over by a terrorist in a 4x4 on Westminster Bridge on Wednesday. Mr Cochran died while his wife remains in hospital

Mr Cochran hurled over the parapet and landed on the concrete walkway under the bridge

Strangers consoled Mrs Cochran as she lay on the bridge next to a toppled postcard stand before an ambulance arrived

The 46-year-old mother desperately cluthced on to a stranger who held her bleeding head as she lay among scattered postcards while they waited for an ambulance. The chilling image swept the world yesterday before the pair were identified

A mother who was on her way to collect her children from school was also killed before the terrorist came to a stop at the Houses of Parliament, crashing his car into railings.

A 75-year-old man died from his injuries today.

A policeman standing guard in New Palace Yard was stabbed and died at the scene.

Distraught family confirmed Mr and Mrs Cochran's involvement in the atrocity on Thursday, telling how they 'ached' for the couple's children.

London was their final stop after a tour of other European destinations.

They had already visited Holland, Germany, Ireland and Scotland and were in the English capital to spend time with Mrs Cochran's parents who work there as missionaries for the Church of the Latter Day Saints.

They were due to return home to the US on Thursday.

'Our family is heartbroken to learn of the death of our son-in-law, Kurt W. Cochran, who was a victim of Wednesday's terrorist attack in London.

'Kurt was a good man and a loving husband to our daughter and sister Melissa.

'They were in Europe to celebrate their 25th wedding anniversary and were scheduled to return to the United States on Thursday,' Mrs Cochran's parents said in a statement.

Other relatives reeled from the news on social media.

'This pain is so heart wrenching and raw it has rocked our family and all that knew him to its core. We will miss Kurt beyond words. We love you Kurt. RIP,' said one.

The pair were on the south London end of the bridge, opposite the Houses of Parliament, when they were hit. Mr Cochran was either pushed over the edge or jumped on to the walkway beneath it

Mr Cochran's family confirmed that he had succumb to his injuries on Facebook on Thursday. The pair have run a recording studio from their Utah home for the last 10 years

They were in London as part of a tour of Europe when they were struck on Wednesday afternoon

President Trump paid tribute to the man as a 'great American' on Thursday morning

Mrs Cochran's family is fundraising on her behalf while she reels from the tragedy

She is currently in a London hospital recovering from a broken leg and a broken rib

Mr Cochran's sister-in-law paid tribute to him as a 'hero' while his brother-in-law said: 'Our hearts ache for her and their children in losing their loving companion and father. Please continue to pray for our family.' They are now fundraising on her behalf.

President Donald Trump eulogized Mr Cochran as a 'great American.'

The pair excitedly shared photographs from their travels including this one, posted by Mr Cochran days before his death

'My prayers and condolences are with his family and friends,' he said in a tweet on Thursday morning.

Mr Cochran is among three innocent victims who died in the attacks.

The other two include a mother who was on her way to collect her children from school and a policeman who was stabbed by the terrorist outside the Houses of Parliament.

Aysha Frade, 43, was on her way to collect her daughters aged eight and 11 when she was hit and thrown under a bus.

Policeman Keith Palmer was stabbed by the terrorist in New Palace Yard outside the Houses of Parliament.

A fundraising page launched for his family has reached nearly £130,000 ($160,000). British Prime Minister Theresa May said of the 48-year-old father: 'He was every inch a hero. And his actions will never be forgotten.'

ISIS claimed responsibility for the atrocities on Thursday.

Masood drove his 4x4 from the south end of Westminster Bridge

President Trump said he had shared a phone call with Prime Minister Theresa May to express his condolences on Wednesday night.

Aysha Frade was also killed on the bridge. She was on her way to collect her daughters from school. PC Keith Palmer died after being stabbed by the terrorist at the Houses of Parliament

ISIS has claimed responsibility for the attacks which also saw a policeman stabbed to death outside the Houses of Parliament