Some residents across Los Angeles County woke up Friday to a wireless emergency evacuation alert, but county officials confirmed it was another "erroneous" message.

An alert designated to warn people of a fire northwest of downtown Los Angeles was sent county-wide, according to a local official. At the time, emergency management was monitoring the Kenneth Fire which triggered its own evacuations.

Emergency managers in Los Angeles apologised after false evacuation alerts sparked panic in a city on edge over an unprecedented wildfire disaster.

The confirmed death toll from three days of raging wildfires rose to 10 people late Thursday as firefighters struggled to contain blazes that have destroyed swaths of America’s most populated county.At least five infernos were burning simultaneously around Los Angeles,

At least five people have been killed and thousands of structures have burned in wildfires raging in the Los Angeles area