Brantford police are on scene at a standoff near the city's core.
Palace Street between Albion and Pearl Streets is closed for what police call a “dangerous situation” which began around 6:00 a.m. Sunday.
Neighbours said a man locked himself in a building with a weapon, and a young boy was inside as well.
In a statement to CTV News Brantford police said "We are investigating an assault that occurred earlier this morning. We have no information that this is a hostage situation or that a child is involved."
Police say there is no risk to public safety.
More as it becomes available.