LILLE, France: An autopsy by cyclist Michael Goolaerts, who died in Paris-Roubaix on Sunday, confirmed that the Belgian suffered a heart attack before crashing in the early stages of the one-day cycling classic.
Goolaerts, 23, was found unconscious and was not breathing on the side of the road after running along one of the famous cobbled sections of the field.
Despite treatment at a hospital in Lille, the rider of the Willems de Veranda team was pronounced dead on Sunday.  "The autopsy confirms the previous hypothesis that the death was due to a heart attack and not a shock," Cambrai state prosecutor Remy Schwartz told AFP on Wednesday.
"He suffered an attack while competing, and that's why he crashed."
Experts will now carry out toxicology and other tests to determine the exact cause of the heart attack, although the results may not be known for several weeks.
"For now, we will carry out toxicological and pathological tests to determine the real cause of the attack," Schwartz added.