An Adams man was killed by a semi in a workplace accident in the town of Leola on Thursday morning, according to the Adams County Sheriff's Office.

Investigators said Robert Losey, 69, was working around a truck at 173 Third Ave. while another employee was backing a semi-trailer up to a building close by. Losey was struck by the trailer and pronounced dead on the scene by the Adams County Medical Examiner.

The crash is under investigation. OSHA is conducting its own investigation.