A Brewer man was killed Tuesday night in a rollover crash on I-95 in Plymouth.

Michael Heath, 63, was alone in the vehicle when he failed to make the turn at the Plymouth exit (Exit 161), according to public safety spokesman Steve McCausland. Heath's vehicle struck a rock before rolling over. He was ejected and died at the scene.

State police, who were called to the scene at 11 p.m., say speed was the primary factor in the accident. Heath was not wearing a seat belt.