A man who authorities say fired shots at motorists along a highway near Ann Arbor is due back in court in April after being ordered to undergo a competency evaluation.

Charges against 28-year-old Elmore Ray include four counts of attempted murder.

AnnArbor.com reports his lawyers on Tuesday requested the exam.

A competency hearing is April 30.

Police in Washtenaw County's Pittsfield Township responded Feb. 27 to a wooded area near U.S. 23 after a 911 caller reported a man dressed in a black trench coat was standing near a bridge and shooting at traffic.

Police say they spotted Ray walking nearby and took him into custody. They tracked his footprints in the snow and found a sawed-off shotgun.

No injuries were reported, and police say no vehicles were struck.

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