Saskatoon police arrested three people on firearms and drug possession charges on Tuesday.
Officers received reports of gunfire around the 2500 block of 18th Street West at about 5:30 p.m., a police news release says.
The suspect was seen leaving the area in a vehicle, which police were able to track down in the 500 block of Avenue W South a short time later.
After initiating a traffic stop, police found a modified rifle and a spent ammunition casing in the vehicle and brought the three passengers into custody.
An 18-year-old man and 17-year-old boy were charged for discharging and possession of the firearm, and a 50-year-old woman was found in possession of a small amount of methamphetamine, the police said.