Fire damages home in Irvine

Fire Sunday damaged a two-story multi-family residential structure in Irvine, authorities said.

Firefighters dispatched at 4 a.m. to the 300 block of Deerfield Avenue had the blaze out within 84 minutes of their arrival, the Orange County Fire Authority reported.

``A mayday was declared during the incident when a firefighter was knocked down to the floor by heavy wet ceiling debris, with the potential need for immediate help," officials said in a news statement. ``The firefighter was able to stand up and exit."

No injuries were reported and a cause of the fire was under investigation.