TORONTO -- A 26-year-old man collapsed and died while running the Scotiabank Toronto Waterfront Marathon on Sunday.

The man collapsed along the route at around 11:15 a.m., according to Toronto Emergency Medical Services.

"He was (vital signs absent) and transported to St. Mike's Hospital," said EMS deputy commander Dan Hunter. "An autopsy will have to determine (what happened)."

Family members didn't inform paramedics that the unidentified man had any previous health conditions, Hunter said.

"If he was running a marathon, so he couldn't have been that bad," he said.

"If you're not prepared for it, anything could happen. Could be underlaying

congenital problems that he has; it's very hard to predict that."

About 23,000 runners registered to take part in the 22nd-annual marathon.

Among them was 100-year-old Fauja Singh who was aiming to become the

Guinness world record holder for oldest marathoner.

The winner of the race was Kenneth Mungara, who took first place in the event for the fourth consecutive year.

Of the top 10 winners, six were Canadians -- including Hamilton, Ont.'s

Reid Coolsaet and Nova Scotia's Eric Gillis, both of whom have qualified for the Olympics in London, England, next year.

Road closures made to accommodate the race left traffic jammed in the downtown core and along the waterfront. However, roads started to open around 1:30 p.m.