At least one person is dead after a head-on collision on Interstate 5 near Santa Nella on Friday afternoon.

The accident occurred at about 4:30 p.m. when a northbound vehicle crossed into the southbound lanes and collided with another car near Santa Nella Road, according to the California Highway Patrol.

Information about the number of people involved or the cause of the collision was not immediately available Friday evening.

All southbound lanes closed shortly after the accident and traffic was at a standstill. The fast lane reopened at 6 p.m.