Peel Regional Police are hunting at least one gunman after a 17-year-old Mississauga boy was shot in a park.

The terrifying incident is believed to have occurred near Four Winds Hollow Park, in the area of Mavis and Bristol roads, just after 10:30 p.m. Monday (April 23).

The teen is believed to have made his way back to his home in the area of Landsborough Avenue and Four Winds Way, where one of his parents called 911.

Peel Region Paramedics rushed him to a Toronto trauma centre with a gunshot wound to the leg.