Updated on Tuesday at 12:50 p.m: Connecticut State Police say the accident, which took place at 4:08 p.m. on Muddy Brook Road in Ellington, remains under investigation.

__________

Rock 102 midday radio host Dan Williams was injured when a bicycle he was riding was struck by a truck in Ellington, Conn., on Monday afternoon.

Williams was thrown 20 feet and suffered a broken fibula and tibia, severe road rash and cuts. His safety helmet was cracked in half, according to his wife and former radio partner Kim Zachary.

He is slated to undergo surgery on Tuesday.

"My husband has ridden cross country twice on his bicycle without incident. He will not leave the driveway without his helmet. Today that helmet saved his life," Zachary said. "It doesn't matter how young or old you are, wear the helmet. You're not Superman."

Williams is a staunch advocate of helmets.

Police accident reports were unavailable on Monday night.

Williams was bicycling to prepare for the upcoming 15th annual Katelynn's Ride, which raises funds for The Jimmy Fund and Baystate Medical Center's Sadowsky Center for Children.

The couple have been longtime supporters of the charity event.