TORONTO — A shooting near a Toronto street festival killed two men and wounded four other people Saturday evening, police said, adding that what initially prompted an active-shooter warning was an exchange of gunfire between two people targeting each other. Toronto Police Deputy Chief Frank Barredo said investigators recovered two firearms after the shooting that was reported at 8:12 p.m. near St. Clair Avenue West and Arlington Avenue, where the Salsa on St. Clair festival was underway. 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. Officers initially urged the public to avoid the area before later announcing the scene had been secured. “There was some concern about an active shooter. That turned out not to be the case,” Barredo said. But the two gunmen involved in the shooting “indiscriminately put vast numbers of people in danger.” Valerie Rodriguez said she was sitting outside a nearby restaurant when people suddenly began screaming and running. “A bunch of people … told