Man with gun inside Rideau shopping centre in Ottawa, Canada, say witnesses

Witnesses have reported seeing a man in possession of a gun inside the Rideau shopping centre in Ottawa, Canada.

A large police presence is outside the shopping mall and officers are present with their guns drawn.

Ottawa police say "due to an ongoing police operation, please avoid Dalhousie Street to the Canal and the Mackenzie King Bridge."

They added: "One person is in custody, the police operation in ongoing."