FRISCO (CBSDFW.COM) – Frisco police are investigating a crash where a bicyclist was struck from behind by a vehicle early Saturday morning. The crash left the bicyclist in critical condition.

Police say the crash happened at around 5 a.m. in the 10100 block of Independence Parkway. The bicyclist was traveling southbound when he was struck by a vehicle traveling in the same direction.

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The bicyclist, later identified as 35-year-old Joseph Orzo of McKinney, was transported to a hospital where he remains in critical condition with severe head injuries. Police say he was wearing a helmet at the time of the crash.

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The driver who struck Orzo did stop at the scene of the crash and is cooperating with police. The cause of the crash is still under investigation.

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Anyone with information on the crash is asked to call Frisco police at 972.292.6010.