NIAGARA FALLS, N.Y. -- A North Tonawanda man has died after a road sign broke through the driver's side window of the car he was driving during a crash Thursday night.

State Police said 26-year-old Dean Anthony was driving on the LaSalle Expressway in Niagara Falls just before 7:00 p.m when his car went off the road.

Two passengers in the vehicle were not hurt and Troopers aren't sure what caused the crash.