File Photo – Harvard Fire Protection District | LMCS File

A 68-year-old man was rushed to the hospital with serious injuries after he crashed his motorcycle on Route 173 in Harvard Saturday evening, authorities said.

The Harvard Fire Protection District and Harvard Police Department responded around 6:24 p.m. Saturday to Route 173 and Lawrence Road in Harvard for a crash with injuries.

Harvard Police Chief Tyson Bauman said the crash involved a motorcycle. No other vehicles were involved.

The motorcycle, driven by a 68-year-old Harvard man, was traveling westbound on Route 173.

The motorcycle was just east of Lawrence Road when it went down for an unknown reason, Bauman said.

911 callers reported the 68-year-old man was down on the ground and unresponsive, according to fire department radio traffic.

Fire crews arrived and requested a medical helicopter to the scene.

No helicopters were available nearby at the time so paramedics ground transported to Mercyhealth Javon Bea Hospital–Riverside in Rockford.

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Bauman said the man, who suffered serious injuries, remains hospitalized but is stabilized.

Route 173 was completely shut down while a crash investigation was conducted before being partially reopened and then later fully reopened.

The cause of the crash is still under investigation, Bauman said.