LANCASTER COUNTY – A death investigation is underway in Lancaster County. Around 2 p.m. yesterday, Ephrata Police responded to the 600 block of Mount Airy Road in West Cocalico Township for a person run over by a bulldozer. Police and emergency crews arrived and determined one man was killed after being struck by the bulldozer. Authorities learned that two men were cutting trees in a nearby ravine when the bulldozer rolled down the hill, hitting and killing one of the men. The name of the victim has not been released.