Published: Aug 01, 2014 4:53 PM EDT

STUART, Fla. (AP) - A manhunt is under way for a suspect in what police are calling a road-rage shooting.
The Martin County Sheriff's Office says 22-year-old Steven Simon of West Palm Beach was shot in the head as he drove on Interstate 95 Thursday evening.
Simon's vehicle crashed but a passenger was able to give deputies a description of the suspect and his vehicle.
The suspect is described as an older male with medium-length white hair. He was driving an older model, beige colored sedan with round taillights.
A statewide alert has been issued and all rest areas and gas stations are being checked.
Simon remains in critical condition.

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