Police recovered two guns after reports of an exchange of fire.

Local reports said a salsa festival was taking place nearby at the time.

"The person responsible must be caught, brought to justice and spend the rest of their life behind bars," said Ontario Premier Doug Ford.

No suspect or suspects had been arrested by the time of a late-night news conference, where Barredo confirmed both of the deceased victims were men.

Police recovered two guns after reports of an exchange of fire.