Border 2 Fire initially started 1:58 p.m. Jan. 23 in San Diego County. After being active for five days, it has burned 6,625 acres. A fire crew of 2,212 effectively contained 74% of the fire by Tuesday morning. The blaze's cause remains under investigation.

Containment of the Border 2 Fire in the far southern reaches of the San Diego area increased to 55% today with flames not posing any immediate threats of spreading further, according to Cal Fire.

Border 2 Fire initially started 1:58 p.m. Jan. 23 in San Diego County. After being active for 47 hours, it has burned 6,624.8 acres, an increase of 125 acres since the last update. A fire crew of 1,177 effectively contained 10% of the fire by Saturday afternoon. The blaze's cause remains under investigation.

Firefighters worked overnight to corral the Border 2 Fire, which spread over some 10 square miles of remote terrain a few miles north of the U.S.-Mexico border and was still only 10% contained Saturday.

The Border 2 Fire, a brush fire that broke out on Otay Mountain near the U.S.-Mexico border in San Diego County on Thursday afternoon, January 23, had burned more than 6,625 acres and was 10% contained as of Sunday.