A father has paid tribute to his son who died in hospital after collapsing at the end of the London Marathon.
St John Ambulance said it treated 5,032 people
Chris Rogers, 52, said his 22-year-old son David, who died on Monday, was "doing what he wanted to do", the Daily Telegraph reported.
Mr Rogers and David's mother Sarah, from Westoning, near Bedford, watched as David crossed Tower Bridge.
"He saw us and waved and then leapt in the air in a star jump. He was doing what he wanted to do," Mr Rogers said.
The cause of the 22-year-old's death has not officially been released, although the Daily Telegraph reported it was due to hyponatraemia following kidney failure caused by a sodium deficiency.
It is the ninth death since the London Marathon began in 1981.
St John Ambulance said that of the 5,032 people it treated, 73 needed hospital treatment as runners battled 21C temperatures at midday, equalling the 1996 record.
The first aid charity provided some 1,400 volunteers, 50 ambulances and 59 treatment centres for the race.
Organisers installed four run-through showers along the route and added an extra 2,600 bottles of water to the normal stock of 25,000 bottles at each station to help runners deal with the high temperatures.