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Explosions reported at early morning commercial blaze in Kent

KENT, Wash. -- Puget Sound firefighters were on the scene of a commercial fire in the 22600 block of S. 228th St. in Kent early Thursday morning that caused major damage to a welding and fabrication shop.

According to Puget Sound Fire's Twitter page, there were no injuries reported, but there was a propane tank burning on the outside of the building. There were some explosions inside the building as firefighters battled the blaze.

The fire was called in about 3:30 a.m., but it might have been burning for a while before a passerby reported it, firefighters said.

The cause of the fire is unknown. As of 4:30 a.m., it was a two-alarm fire and firefighters were pulled back to a "safe zone," but the fire was under control by 5:15 a.m.

Firewalls between tenant spaces helped to prevent the fire from spreading, but a neighboring glass works business was also damaged.