SAN LORENZO — A house fire Thursday afternoon left six residents displaced and two dogs dead, officials said.

The fire was reported about 12:22 p.m. in the 1600 block of Brandoni Avenue.

When Alameda County Fire Department firefighters got on scene the home was engulfed in flames with heavy smoke billowing from the structure, officials said.

None of the six residents were home at the time of the fire, officials said.

Fire Department spokesperson Cheryl Hurd said firefighters removed two small dogs from the home; despite attempts to resuscitate them, they both died.

The fire was brought under control in about 20 minutes. The cause of the fire is under investigation. A damage figure was not available.

The displaced residents were being assisted by the Red Cross.