A 40-year-old man is facing arson charges after an early morning fire in Saint John.

Fire crews responded to an industrial warehouse on the city’s west side just before 5 a.m.

It took about two hours for firefighters to gain control of the situation but it was too late to save the building.

Fire crews say three 100-pound propane cylinders inside the building complicated their efforts.

“It was good to find out in the firefight that we had that issue and we took those steps to further protect our firefighters,” says Saint John Fire Chief Kevin Clifford.

“The explosion range on those cylinders didn’t present any danger to the neighbours, but certainly for the firefighters extinguishing the fire.”

Police say they have arrested a man in connection with the fire, as well as a tractor-trailer fire about three weeks ago in the same area.

Thursday’s incident was the fourth fire in the area since September.