LOUISVILLE, Ky. (WHAS11) –Investigators have yet to identify the tow truck driver hit and killed on Dixie Highway overnight.

Detectives say that the emergency flashing lights were on but they may have been blocked by a disabled vehicle already on the truck's flatbed.

The accident happened after 10 p.m. Monday on Dixie near west point in Southwest Jefferson County.

A driver of a van side-swiped the driver, killing him at the scene.

Authorities stress the importance of being alert in dark areas especially in remote areas on Dixie Highway.

LMPD says the driver of the van has been cooperating and was not arrested. Toxicology results are pending.