Firefighters are battling a fourth-alarm fire in Phoenix near 27th Avenue and Lincoln Street, just north of Buckeye Road.

The Phoenix Fire Department says the original call in the area was for a grass fire. The fire quickly spread to at least four nearby buildings.

Live images show a massive plume of smoke coming from the area.

Watch live coverage of the fire in the player below: ABC15 Arizona Live Video

Officials say there could be residuals of gas due to vehicles nearby from different recycling centers, junkyards and auto shops.

According to a Phoenix fire spokesperson, there have been reports of live ammunition in the area.

Lyne Emerson, who works at Assurance Moving & Storage near 27th Avenue and Lincoln Street, told ABC15 said she could see the fire across the street.

Its pretty bad. I can feel the heat, she told ABC15, as she told employees to get out of the building.

Im worried, she said, right before the phone call was abruptly disconnected.

Officials urge anyone in the area who isn’t able to evacuate to shelter in place.

The Arizona Department of Environmental Quality urges people to stay inside and limit outdoor activity at this time.

No injuries have been reported, according to officials.

Stay with ABC15 as we work to get more information.