The Zanesville Highway Patrol is investigating a fatal accident Monday afternoon. It happened just after 1 p.m. by Muskingum Motor Speedway on State Route 60 North. One woman was killed and a man was flown by medical helicopter to a Columbus Hospital. The Zanesville Post of the Highway Patrol is on the scene of the accident that involved a motorcycle and a truck. Falls Township EMS and Fire also responded to the scene. The Highway Patrol has not yet released the names of those involved in the accident.