Montreal police are investigating after shots were fired on St-Antoine Street, near 32 Avenue, in Lachine Sunday afternoon.
Police were called to the intersection at 2:25 p.m.
When officers arrived at the scene, they discovered a BB gun and blood on the ground.
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Witnesses told police they saw at least three people fighting before the shots were fired.
Police said they took off in an unknown direction after the shots were heard.
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Montreal police spokesperson Andrée-Anne Picard said officers have yet to locate a victim, or any suspects.
St-Antoine Street will be closed between 32 and 33 avenues for an undetermined amount of time to allow for the investigation.