Staff Sergeant and Risk Manager Steve Ettinger with the RCMP confirmed the incident was first reported at 7:14 a.m. at 12 Carleton Street.
Several RCMP officers responded.
The only details currently confirmed are that a male, suffering some kind of episode, climbed onto a rooftop with an axe on Carleton Street.
Officers were able to deescalate the situation after four hours of negotiations.
The man was taken into custody at 11:40 a.m. and the RCMP said he received treatment. The RCMP did not specify the type of treatment.
No one sustained injuries during the incident.
More updates to follow.