Flames ravage storage facility in Laguna Hills

Firefighters battled a stubborn four-alarm fire at a two-story storage unit in Laguna Hills.

Firefighters were dispatched at 3:22 a.m. on Sunday to the 25000 block of Costeau Street, said Orange County Fire Authority Capt. Tony Bommarito.

There has been a partial wall and roof collapse and 90 firefighters were on scene, Bommarito said.

No injuries have been reported and firefighters went into defensive fire attack of the blaze at 5:15 a.m., he said.