It remained the extent of the injuries resulting from the Lilac Fire.
Authorities said the fire was moving west along the Route 76 corridor, driven by "unprecedented winds", and could threaten parts of Vista and Oceanside.
The Lilac Fire, the sixth fire, erupted Thursday morning in San Diego County near Bonsall.
As of late afternoon, crews had gained no containment of the fire, which had grown to about 2,500 acres while being pushed by stiff Santa Ana winds "at a unsafe rate of spread", Cal Fire reported. Officials said the fire was growing at a "dangerous rate" thanks to high-speed winds in the area.
A victim of the Lilac Fire being transported to an awaiting helicopter.
"This is not something that we're not used to seeing, it's just not typical", said Cal Fire Captain Jon Heggie.
Firefighters were dealing mainly with the Thomas Fire, the largest of the four, which started on Monday at 50 acres and swelled to 96,000 acres as of 10 a.m. Thursday.
A mobile home park, a country club and two schools have been evacuated.
Temporary shelters have been set up at Fallbrook High School, the East Valley Community Center in Escondido, Pechanga Casino and Pala Casino, according to CAL Fire.
The Del Mar Fairgrounds was opened as an evacuation center for livestock, and 130 animals had been brought to the facility as of around 5 p.m. County officials urged livestock owners to evacuate their animals well ahead of time.
Cal State San Marcos has canceled classes for the rest of Thursday as well as Friday in consideration of employees and students affected by the Lilac Fire in northern San Diego County. The cause of the blaze was not immediately known.
A post on O'Neill's Facebook page indicated that O'Neill's assistant Leandro Mora was on site at San Luis Rey to assist with the evacuation process.