A man suspected of firing a gun inside a Belleville high school and then robbing a bank in the city's downtown on Thursday afternoon remains on the loose, Belleville police said.

No one was injured in either incident, said Sgt. Kosta Brindakis.

Quinte Secondary School was locked down for more than an hour after a shot was fired inside the building just before 2 p.m., Brindakis said.

Police believe the same male suspect went on to rob the Royal Bank on Front Street in downtown Belleville minutes after firing a gun in the school.

A man pointed a gun but did not fire it during the bank robbery, police said. He left with an undisclosed amount of money, police said.

Police released a photo of the suspect and are asking anyone who may know where he is to contact them at 613-966-0882.

The suspect is described as between the ages of 25 and 35, with a slim build and standing between five foot ten inches and six feet tall.

He has short dark hair, was unshaven with a dark goatee, and was wearing a black ball cap and sunglasses, police said.

He was also wearing a long sleeved black shirt, a dark grey Sierra Design vest, light grey pants, grey hiking boots with black toe caps, and had a black backpack, police said.