A fence runs along the U.S.-Mexico border.
A fence runs along the U.S.-Mexico border.

SAN DIEGO - Authorities say gunfire struck a U.S. Border Patrol agent's marked vehicle just north of the U.S.-Mexico border in San Diego.

Supervisory Border Patrol Agent William Rogers says the agent was shot at multiple times at about 2:15 a.m. Sunday,  1½ miles (2.4 kilometers) west of the San Ysidro Port of Entry.
 
The agent immediately drove to a safer location, and the vehicle appeared to show multiple bullet holes.
 
Rogers says in a statement that Mexican authorities were notified because the gunfire appeared to originate from that side of the border.
 
Mexican authorities took someone into custody who was in possession of a gun. A second person initially detained was released.
 
Rogers says the FBI is investigating.