Authorities said one person was killed after being found on Highway 5 near the border in the San Ysidro area.
It was not clear how the person died, and no further details were revealed.
California Highway Patrol was moved to the south side of the highway at the entrance to the Camino de la Plaza – near Interstate 805 – at 12:45 a.m., according to H. Austin, with the Border Communications Center for California Highway Patrol.
He said that at 1:05 a.m., investigators summoned paramedics to the scene to provide medical assistance to at least one victim. Dikima said that this person later passed away.