Anaheim recycling plant caught on fire Thursday night

ANAHEIM, Calif. (NBC) - Firefighters responded to a four alarm fire at an Anaheim, California paper recycling plant late Thursday night.

Ten acres of recyclable paper were on fire, however fire officials say the flames are out.

The first arriving units observed thick smoke leading to a large fire in an outdoor rubbish pit, and the response quickly grew to a fourth alarm.

Then, units from Orange County Fire Authority, Brea, and the cities of Orange and Fullerton aided in the response

In addition, forty to 50 residents had evacuated and firefighters told nearby residences to shelter in place.

Arson investigators will take over the probe into the cause of the fire.