Fatality at London Marathonpublished at 11:53 British Summer Time 25 April 2016
Here is a statement from the London Marathon organisers:
"With deep sadness, we confirm the death of a participant in the 2016 Virgin Money London Marathon.
"David Seath, aged 31, from Cowdenbeath in Fife and a serving officer in the British Army, collapsed at the 21 mile mark and, although he received immediate medical treatment, he died later in hospital.
"His mother Libby Seath said: 'David has achieved more in 31 years than most people do in 70. He lived his life on the edge and to the full. He was running to raise money for Help the Heroes, a cause which was very important to him.'