Toronto police are searching for suspects after receiving reports that shots were fired near 10 Yorkwoods Gate just before noon Thursday.
A witness told police that a person with a gun was seen in the area. The dispatcher who took the call could hear three or four shots in the background, according to police. Another caller reported that a group of men were shooting at each other.
The lockdown order at Yorkwoods Public School was lifted shortly after noon.
There are no reports of injuries.
The Toronto police Emergency Task Force and canine units were called to the scene.
Police say a command post is being set up to search for the suspects.