India, Aug. 27 -- Jeff Browning, a hugely popular American ultramarathon runner and coach, suffered a heart attack during a trail running race in Chamonix, France on Monday, August 24.

Browning, 55, was a veteran trail runner. An update was posted on his social media page stating that Jeff Browning suffered a heart attack and was airlifted to a hospital. He is "under medical care," they added.

According to an update on the live blog of the race on the website of Trail Runner, a platform for news and updates related to the sport, Browning suffered the heart attack around 80 miles into the 90-mile race called the TDS race at UTMB.

Following the release of the statement from Jeff Browning's family on Wednesday, a claim originated on socia...