SAN DIEGO -- A fire that started near the U.S.-Mexico border late Wednesday had burned about 50 acres in the U.S. by Thursday morning.
The fire broke out around 11 p.m. just south of the border and spread north, ending up near the base of Otay Mountain. Cal Fire said they had a "significant presence" in the area and were fighting the flames, but there were no homes threatened.
Crews stopped the forward spread of the fire Thursday morning and had reached 90% containment by 5 p.m., Cal Fire said.
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Much of Southern California remained under a Red Flag warning Thursday, and fires burned across the region, including in Chula Vista, Simi Valley, Riverside and San Bernardino. Thousands of San Diego County residents were also without power as a fire danger precaution.
Crews on the southern side of the border were also fighting the blaze. By 7 a.m., it had burned roughly 400 acres south of the border, according to Cal Fire Capt. Thomas Shoot.
A series of deadly fires in Baja California raged in Tijuana, Tecate, Rosarito and Ensenada in recent weeks.