Firefighters Battle Massive Warehouse Fire In Tustin

Firefighters are battling at this hour a blaze that has burned through the roof of a two-story commercial building in Tustin.

Eighty firefighters were sent to 17291 Irvine Blvd. about 8 a.m., Kris Concepcion of the Orange County Fire Authority said.

The firefighters were in a defensive mode, pouring water on the building from the outside, Concepcion said. No injuries were immediately reported.

The blaze, which erupted at 7:30 a.m., caused the roof of the office building to partially collapse.

Everyone in the building exited safely, and no injuries were reported.

Several office suites were destroyed in the fire.

The cause of the blaze has not been determined.