CLIVE, Iowa -- A bicyclist died Thursday after an accident on Clive's Greenbelt Trail.
Someone using the trail called 911 about 2:15 p.m. Thursday after seeing a body in the 10300 block of the trail, just south of the Seven Flags Event Center.
Authorities arrived and found the body of an adult male lying face down in a creek near a bridge along the trail between 100 and 104th streets. His bicycle was found nearby in the creek.
"It appeared the bike had left the trail near a wooden bridge and gone down a steep embankment onto a rocky area," said Clive Police Chief Michael Venema.
The victim was still wearing his helmet.
Police say the cyclist was riding with his sister when the accident happened.
"About 20 minutes after our arrival, officers were approached by a 12-year-old girl looking for her brother," Venema said. "They had become separated as he rode out ahead of her. She gave officers a description of her brother, which matched the description of the deceased person," Venema said.
Authorities are investigating whether it was a medical condition, the bicyclist's speed or rough terrain that caused him to fall from the bridge. Foul play is not suspected.
Other family members who had arrived at the scene positively identified the man as the missing bicyclist, police say. His name is not being released.
The trail was closed between 100 and 104th streets, but it has since been reopened.
Check back for updates.