Police in Mississauga are looking for three suspects they say tried to rob an armoured truck.
Authorities say three men outside a TD Canada Trust bank branch at Southdown road and Royal Windsor Drive confronted a two-man crew with G4S Security.
One of the suspects was armed with a weapon which police later discovered was a pellet gun.
The suspects and security crew got into a scuffle and one of the guards pulled out a gun and fired.
Police say they don't know if anyone was hit.
Investigators found the suspect's pellet gun near the scene of the incident.
