Multiple police cruisers could be seen outside city hall on Monday. (Dan Shingoose/CTV News)

City Hall will remain closed until noon on Tuesday after an incident that saw police called to the building.

Police were called to city hall Monday afternoon after a man threatened to harm himself in the building's lobby.

A 21-year-old man managed to injure himself with a knife before responding officers could intervene, Saskatoon Police Service (SPS) said in a news release.

The man was taken to hospital and is believed to be in stable condition, according to the SPS.

Multiple police cruisers could be seen outside city hall on Monday afternoon.

“There was a serious incident today inside the lobby at City Hall and a man was injured. City staff are now being offered mental health supports in the wake of this event.” The City of Saskatoon said in a news release.

The City says in order to provide the support and counselling necessary to staff, City Hall will be closed on Tuesday, 8:00 a.m. to noon. Online services are available.

The advance polling station at City Hall, accessible through door 1A, will stay open