Redondo Beach’s 911 system was kicked offline for a short period on Sunday after a fire at an AT&T communications center, according to officials.

“Due to telecommunications outage in the South Bay, 911 lines are currently down,” the department posted on Facebook around 2 p.m. Sunday. By the next hour, lines were up.

Officials said a trash fire, which spread to the AT&T facility in Gardena and burned for five hours early Sunday morning, appeared to be the source.

The blaze began as a rubbish fire and spread into a 300-by-200-square-foot communications building with lead-acid batteries, said Los Angeles Fire Department spokeswoman Jennifer Middleton.

More than 100 firefighters including Hazmat responded to the blaze along the 16200 block of South Vermont Avenue.

“They were having some t

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