A 47-year-old farmer was killed when the tractor he was riding rolled over on him while he was clearing brush from a hillside behind his house, state police at Westminster have reported.

Robert Lee Dell, of the 4800 block of Baughman Mills Road in Lineboro, was clearing a hillside of brush and debris about 9 a.m. yesterday when the tractor flipped, trapping him underneath the rear wheels, police said.

Police said a female occupant of the victim's house discovered the accident and called the Carroll County emergency operations center.

An ambulance crew and police pronounced Mr. Dell dead at the scene of multiple internal injuries.