3 SF firefighters hurt, 7 displaced in overnight 4-alarm blaze

SAN FRANCISCO, Calif. (KTVU) -- - Three San Francisco firefighters were hurt early Thursday morning, battling a fire that damaged three buildings in the Castro district.

The blaze was first reported at 12:17 a.m. at 27 Hattie Street, near Market. The blaze went to a second alarm 5 minutes later. The fire grew to a third alarm at 12:40 a.m., and then upgraded to 4 alarms, just before 1 a.m..

The fire forced seven residents living in the three buildings out of their homes.

The Red Cross is on scene to assist them.

The fire was brought under control shortly after 2 a.m..

All three of the firefighters are expected to be ok.

According to a fire spokesperson, one was taken to the hospital with a possible fractured wrist, while the other two were treated at the scene.

While no resident was hurt, a female tabby cat from one of the burning buildings is missing. She was last seen running out the door, by someone in the neighborhood.

Photos and videos posted on social media by the San Francisco Fire Department and the SF Firefighters 798 showed flames burning through the roof.

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Twitter account show flames burning through the roof.

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At one point, Market Street was shut down to traffic in both directions for about four blocks.

There is no word yet on what may have started the fire.

KTVU will continue to update this developing story as new information becomes available.