A 45-year-old bicyclist was killed early Wednesday in a hit-and-run collision in San Diego’s Egger Highlands neighborhood.

The crash occurred about 1:15 a.m. on Palm Avenue near 16th Street. The victim was riding a mountain bike eastbound in the bicycle lane when an unknown vehicle traveling eastbound veered right and struck him from behind, according to the San Diego Police Department.

Police said the driver fled the scene in an unknown direction. The bicyclist died at the scene. His name was not released.

Investigators have not yet released a description of the vehicle or the driver.

Authorities urged anyone with information about the crash to contact police or Crime Stoppers anonymously at 888-580-8477.