SAN FRANCISCO (KRON) — The San Francisco Fire Department responded to a fire in the Mission District Friday night. One person was injured in the blaze, and 21 people were displaced, SFFD said.

The fire was reported at 3017 20th Street. It was a second-alarm fire.

The Red Cross is assisting those who were displaced. SFFD said the fire is under investigation.

This is a developing story. Stick with KRON4 for updates.