Crews battling brush fire on 73 Toll Road in Orange County

Crews are battling a brush fire on the 73 Toll Road in Orange County Wednesday evening.

The Orange County Fire Authority responded to a call of a vegetation fire in the southbound lanes of the 73 Toll Road near the 133 Freeway.

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The Irvine Police Department estimates the fire has extended to about five acres.

OCFA says more than 100 firefighters are on scene.

This is a developing story. Check back for updates.