Knox County Sheriff's deputies are investigating and searching for a black pick-up truck that fled a three-vehicle accident that caused serious injury on Wednesday afternoon.

The crash occurred on Keys Road between Pleasant Valley Road and New Delaware Road, according to a Knox Sheriff's Office Facebook post.

Investigators report that the vehicle that left the scene was described as a full-sized, black, flatbed pickup truck. It should have front-end damage and was last seen traveling northbound on Keys Road.

Anyone who may have seen this truck, witnessed the accident or who has other information is asked to contact the dispatch center at 740-397-3333, ext. 1.