Crews battling 4-alarm warehouse fire in West Easton, Pennsylvania

 Hazmat crews called to scene, no reports of injuries

Fire crews are battling a four-alarm warehouse fire in West Easton, Pennsylvania, along the Lehigh River.

Flames broke out at the building in the 1500 block of Lehigh Drive around 5 a.m. Tuesday,  Philadelphia reports. 

 flew over the scene as heavy smoke and flames engulfed the industrial building. Firetrucks could be seen attempting to extinguish the blaze. 

Officials say hazmat crews have also been called to the scene.

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A fire truck can be seen at the site of a warehouse fire in West Easton, Pennsylvania, Tuesday morning. (FOX 29 Philadelphia)

Several businesses occupy the warehouse, including a custom coating business, a motor line company and a components warehouse, authorities said. It is unknown if anyone was inside at the time of the fire. 

Residents in the area reported seeing the flames from across the river and in surrounding communities.

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A massive fire has erupted at a warehouse in Northampton County Tuesday morning, prompting a heavy response from emergency crews. (FOX 29 Philadelphia)

There were no reports of injuries.

"Northampton County Emergency Management Services said the Pennsylvania Department of Environmental Protection will be at the site testing for air quality," Lehigh Valley Live reports. 

FOX 29 Philadelphia's SkyFOX flew above the industrial building fire. (FOX 29 Philadelphia)

The warehouse on fire is near the Lehigh River in West Easton, Pennsylvania. (FOX 29 Philadelphia)

Electricity provider Met-Ed has apparently cut power to the surrounding area, affecting more than 3,700 customers, a spokesman told the media outlet.