All,

Four firefighters have been injured and one of them is in critical condition after fighting a three-alarm fire at a pesticide storage warehouse in Mississauga, Ont., early this morning.

The firefighters were being treated after a wall collapsed and an explosion occurred at the industrial facility.

Companies were called to the fire around 4:30 a.m. ET. All members were ordered to leave the structure and battle the fire only from the exterior after a Mayday call went out following the wall collapse, which reportedly trapped three firefighters briefly.

Explosions could be heard in quick concession as officials got word from the building owner, who was en-route to the scene, that a large amount of pesticides and aerosols are stored in the building. 

We'll keep you advised-KTIYP's.

Take Care. Be Careful. Pass It On.

BillyG

The Secret List 4-23-14-0630 hours