Crews battled a fire at Philadelphia Floor Store and Centex Blinds in Conshohocken Sunday morning.
The fire started along the 1000 block of Colwell Lane after 3:00. Officials said a firefighter on the way to another fire noticed the blaze.
Emergency officials urged residents in the smoky area surrounding the fire to shelter-in-place due to the possibly toxic fumes. The shelter-in-place was later lifted.
Plymouth Fire Company Chief Michael Burton reported multiple explosions were heard on scene once fire crews arrived.
Gas and electric services were cut off to about 100 nearby homes as a precaution, according to PECO officials.
Chief Burton said officials with the Department of Environmental Protection and Montgomery County Hazmat were called to the scene to assist with chemical run-off from the fire.
The fire reached three alarms as crews worked to bring the flames under control.
No one was injured during the blaze.
Officials continue to investigate the cause.
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