There was a heavy police presence outside a Halifax apartment building on Tuesday that ended with an arrest five hours after it started.

Police say it started around 4 p.m. when they received a call that a woman had been assaulted by a man she knew. Police also received information that a firearm may have been involved.

Police swarmed an apartment building on Forbes Street in the Spryfield area of the city. The building was evacuated and a transit bus was made available for anyone who wanted to stay in it.

The woman was taken to hospital with non-life threatening injuries.

Police say they arrested a man around 9 p.m. and the streets were then reopened.