LOS ANGELES (AP) — Authorities say five firefighters are injured after battling a large and "extremely hot" fire that engulfed a storage facility in Venice.

Los Angeles fire spokesman Erik Scott says about 200 firefighters battled the blaze at the Extra Space Storage facility into the early hours Sunday, after it broke out around 7:30 p.m. Saturday.

Two firefighters with heat exhaustion and another with a back injury and blisters were taken to the hospital, while another with heat exhaustion and a captain with an unspecified injury were treated at the scene.

The building's metal roof made it difficult for heat and smoke to escape. Firefighters had to cut holes in the roof and break windows to try to ventilate the structure.

Combustible items packed inside the storage units also fueled the flames and created extremely hot and smoky conditions.

Scott says the blaze was smoldering early Sunday and an official "knockdown" would be called later in the morning.