Firefighter injured, 10 displaced in East Chatham fire

A firefighter was injured and four families were displaced early Monday when a fire broke out in an apartment building in the East Chatham neighborhood on the South Side.

The fire began on the second floor about 1:20 a.m. and spread throughout the building in the 800 block of East 80th Street, Chicago Police said.

A firefighter who was responding to the blaze was treated on the scene for a minor leg injury, police said. No other injuries were reported.

A total of 10 people were displaced from their homes, police said.

The cause of the fire was unknown and was being investigated by the Office of Fire investigations.