Update, 9:09 p.m. Firefighters say a portable heater caused the residential fire on Keith Avenue. Read about it on Berkeleyside.
Update, 2:10 p.m. According to emergency scanner traffic, the incident was determined to be under control as of just after 2 p.m. Berkeleyside will update this post as more information becomes available.
Original post, 12:42 p.m. Berkeley Fire crews are working to put out a fire in a north Berkeley home in the hills that began just before noon, authorities said.
Firefighters responded to the 1100 block of Keith Avenue at 11:47 a.m. for a report of a structure fire, said Interim Fire Chief Gil Dong.
Crews found a three-story home on fire when they arrived, said Dong, with heavy fire coming from the second and third floors.
He said no injuries had been reported, as of about 12:30 p.m.
No cause has been determined, as firefighters are still engaged in knocking down the blaze, he said.
A thick black cloud of billowing smoke could be seen from many vantage points around Berkeley.
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