File Photo – Algonquin-Lake in the Hills Fire Protection District | LMCS File

An 87-year-old man is in serious condition after he crashed his motorcycle into the median wall on Route 31 in Algonquin Sunday afternoon, authorities said.

The Algonquin Police Department and Algonquin-Lake in the Hills Fire Protection District responded around 3:45 p.m. Sunday to a report of a single-vehicle crash on Route 31 just south of Algonquin Road.

Algonquin Police Department Sergeant Jason Burzynski said an investigation determined a black 2007 Harley Davidson motorcycle was traveling northbound on Route 31.

The motorcycle, driven by an 87-year-old Geneva man, was approaching Algonquin Road when he struck the center median.

The man lost control of the motorcycle and went over the median, entering the southbound lanes of Route 31, Burzynski said.

The motorcycle then ran off the roadway down an embankment where it came to a rest in a grassy area adjacent to the bridge overpass.

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A medical helicopter was requested to the scene but was unavailable.

The 87-year-old man was transported from the scene by ambulance to a local hospital.

He is in serious condition, Burzynski said.

The north and southbound lanes of Route 31 were shut down for a short period of time for a crash investigation.

Southbound and northbound lanes were shut down one at a time to minimize traffic disruption, Burzynski said.

The incident remains under investigation by the Algonquin Police Department.

Anyone who witnessed the collision is asked to contact the Algonquin Police Department at 847-658-5431.