Investigators probing cause of fire, possible explosion at West Palm Beach warehouse

WEST PALM BEACH, Fla. - An 'incredibly loud and fiery explosion' is how residents in one West Palm Beach neighborhood are describing what they saw, heard and felt when a large fire broke out on Georgia Avenue Monday evening. 

"It sounded like a bomb," said Bob Shoe, who lives nearby.

It took fire crews about 90 minutes to get the flames under control. Two of the four units -- 5329 and 5331 -- were completely gutted by flames. No one was injured, according to a city spokesperson.

Authorities said one of the units of the building, rented out to tenants, contained "herbal incense."

Now there are questions about what kind of a business was operating in that warehouse and if, somehow, an explosion occurred.

Neighbors and nearby workers say in the days before this fire they could smell chemicals in the air. Some have their theories about what may have been going on inside.

None of those, as of yet, have been confirmed by investigators.

Residents said they are shocked that no one was hurt or killed after the power they witnessed. 

"All you hear is a bang, boom, like the walls started shaking and I opened the door and looked outside and all you see is smoke coming out of the building," said Junior Garcia who lives next door to the warehouse. "It was insane."

Monday night, investigators were combing through property records to find out who owns the business and building.

The "incense" company has not shown up since the incident.

YouReporter Billy Marsh sent video of the fire.