U.S. Border Patrol personnel were involved in a shooting incident in California on Friday that resulted in a fatality, according to reports.

The shooting happened near the San Ysidro crossing into Mexico, FOX 5 of San Diego and City News Service reported.

Details about what led to the shooting remained unclear, reports said. The person killed was not identified.

BORDER PATROL ARRESTS NEARLY 300 ILLEGAL IMMIGRANTS IN 18 HOURS

The shooting occurred shortly before 6 p.m. local time near the Las Americas Premium Outlets mall, according to KFMB-TV of San Diego.

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No further details were available from the Border Patrol.