15 April,2013 12:08 PM IST | | Agencies
The runner who was reportedly from London collapsed after suffering a suspected cardiac arrest Sunday, reports Xinhua.
Representational pic.
He was treated by paramedics and an off-duty police officer of Sussex Police said he was taken to the Royal Sussex County Hospital in Brighton for emergency surgery but was pronounced dead later.
More than 9,000 participants took part in fourth Brighton marathon, which was first held in the city in 2010.
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