A Brewer man was killed Tuesday night when he was thrown from his car after crashing into a rock wall in Plymouth.

Maine State Police say 63-year-old Michael Heath died at the scene of the crash at the I-95 off ramp to Exit 161. Troopers determined Heath, who was traveling south, failed to negotiate a curve at the Plymouth exit and his car left the road, struck a rock wall and overturned.

Heath was not wearing a seatbelt. Speed was the primary cause of the crash, police said.

Comments are not available on this story. Read more about why we allow commenting on some stories and not on others.