A two-alarm fire at a building in San Francisco’s Mission District has been brought under control Friday morning, according to the fire department.

Crews were dispatched to the structure fire in the 100 block of Poplar Street at 9:32 a.m., fire officials said.

The fire department reported that at 10:22 a.m. the fire at the four-story residential building was under control.

Two firefighters suffered minor cuts while battling the blaze, according to the fire department. No other injuries were reported.

The American Red Cross was responding to the scene to assist the 21 residents reportedly affected by the fire. The total amount of people displaced is not yet known, according to the fire department.

Bay City News Service contributed to this report.