Guelph police say a man pulled out a black handgun while people were using an ATM.
Around 8 p.m. on Thursday, police said a man and a woman were taking money out at a business near Speedvale Avenue and Dawson Road.
The daily email you need for
Guelph's top news stories.
While withdrawing money, investigators said another man was sitting on the floor nearby and he took a black pistol out of a paper bag and pointed it at the ceiling.
Police then received a call and the officers who answered say they seized a black Glock-style BB gun and made an arrest.
The man had been previously ordered not to carry a gun.
A 41-year-old was charged and held for a bail hearing on Friday.