Mr Cochran was an engineer who also owned his own music studio in Utah.

Kurt Cochran, from Utah, died in the attack and his wife Melissa was seriously hurt, their family has said.

They were celebrating a 25th wedding anniversary and also visiting Melissa's parents, who work on a Church of Jesus Christ of Latter-day Saints mission.

They were struck when the attacker drove a car over Westminster Bridge, near the Houses of Parliament.

So-called Islamic State has said it was behind the attack, which left four people dead, including the attacker.

His family released statements confirming his death and that his wife Melissa is in hospital recovering from her injuries.

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A great American, Kurt Cochran, was killed in the London terror attack. My prayers and condolences are with his family and friends.

Donald Trump

https://twitter.com/realDonaldTrump/status/844930836663357440

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Mr Cochran's brother-in-law released a statement on behalf of the family:

Our family is heartbroken to learn of the death of our brother - and 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 sister and daughter, Melissa.

They were in Europe to celebrate their 25th wedding anniversary, and were scheduled to return to the United States on Thursday.

Melissa also received serious injuries in the attack, and is being cared for in the hospital.

We express our gratitude to the emergency and medical personnel who have cared for them and ask for your prayers on behalf of Melissa and our family.

Kurt will be greatly missed, and we ask for privacy as our family mourns and as Melissa recovers from her injuries.

– CLINT PAYNE, KURT COCHRAN’S BROTHER-IN-LAW