One firefighter was injured during a morning blaze at a residence behind City College of San Francisco that also caused three people to suffer from minor smoke inhalation, fire officials said.

The one-alarm fire broke out around 9:17 a.m. at a house on 43 Edna St. in Balboa Park and was contained within 15 minutes, a fire department spokesperson said on Twitter.

The three people suffering from smoke inhalation were displaced. The Red Cross is expected to help them, fire officials said.

The firefighter suffered only a minor injury.