A fight has erupted in a parking lot of a Mississauga Costco, police said.

Peel Regional Police responded to the scene of a brawl on Mavis Road and Britannia Road West between two people - a 37-year-old man, and a 28-year-old man, both of Mississauga. The incident occurred just before 3:30 p.m. on Monday (Aug. 19).

The 28-year-old man was injured after the 37-year-old allegedly assaulted him with his car keys. Police and paramedics investigated the incident, the 28-year-old man was cleared at the scene. The brawl took place in the parking lot of Costco Wholesale at Heartland Town Centre.

"Don't let a minor circumstance like a parking space escalate into inappropriate behaviour," Const. Sarah Patten said as she explained the incident. "It's just not worth it."