HESPERIA, Calif. (KABC) — One person was injured Monday in an apparent shooting on the 15 Freeway in Cajon Pass, authorities told Eyewitness News.

The incident happened just south of Oak Hill Road.

Details are limited, but investigators say the victim was shot in the leg and the suspect fled the scene. The victim’s condition is unknown.

All southbound lanes of the 15 Freeway at Ranchero Road will remain closed until further notice, according to the California Highway Patrol. The Oak Hill Road on-ramp to SB 15 will also be closed.

In the meantime, motorists are being asked to use an alternative route.

This is a developing story. This article will continue to be updated as more details become available.