Apartment fire displaces 6 residents, including pregnant woman

SAN FRANCISCO (BCN) - Six people, including a pregnant woman, were displaced this afternoon after a fire burned two apartment buildings in San Francisco's Richmond District.
   
The fire was first reported around 3:39 p.m. in the 300 block of 21st Ave., according to fire spokesman Jonathan Baxter.
   
The fire caused extensive damage to a three-story residential building. Another residential building located next-door sustained minor damage, Baxter said.
   
One man suffered a minor burn injury to his hand. He was taken to the hospital with injuries not considered life-threatening, according to
Baxter.
   
The American Red Cross is assisting the displaced residents, fire officials said.
   
The cause of the fire remains under investigation, according to Baxter.