More than 100 firefighters battled a vegetation fire that prompted the temporary closure of Irvine Regional Park on Sunday, officials reported.
The fire at Irvine Regional Park, located at 1 Irvine Park Road in Orange, was reported about 1 p.m. and grew to 21 acres, the Orange County Fire Authority said on Twitter.
The fire did not threaten any structures.
It took firefighters about one hour and 24 minutes to stop forward progress, the OCFA said.
There were no reported injuries and the animals at Irvine Regional Park were safe, officials said.
The park reopened Monday morning.
The cause of the fire remains under investigation.