A loud boom shook multiple houses and businesses in the Mahoning Valley this afternoon.

21 News heard from a number of people in areas like Canfield, Austintown, Warren, Hubbard and Coitsville who all said their homes shook.

The Warren Township Fire Department posted on Facebook that they are investigating a reported explosion on Main Avenue at an industrial location.

Officials say a steam boiler at the ArcelorMittal plant exploded. No one was hurt.

Employees with Shorty's Place Bar and Grill on Highland Avenue SW said they felt the explosion and saw smoke coming from the area of Main Avenue.

Below is a video from a 21 News employee's home where you can hear the boom:


Another video shows the aftermath of the explosion:


This is a developing story. Stay up to date with the 21 News app.