BAKERSFIELD, Calif. (KGET) — Northbound lanes of Interstate 5 at the Grapevine closed Monday night because of a shooting investigation by the California Highway Patrol, officials said.

According to the CHP, the shooting happened around 7:30 p.m. on the freeway and left a semi-truck driver wounded.

“We got calls of brandishing on the freeway, which is someone brandishing a firearm at a truck driver that turned into an altercation which ended up in the truck driver being shot, at this time the wounds are non-life threatening,” CHP Public Information Officer D.C. Williams told 17 News Monday night.

Officers said the shooter and his female passenger left the scene and are still on the loose.

Northbound lanes of I-5 were closed for over 10 hours overnight. The road reopened just before 7 a.m.