One person is dead after a shooting involving an RCMP officer in Fort McMurray overnight. The officer suffered a gunshot wound and is now in hospital with a non-life-threatening injury.

Police say they got an emergency call around 3:30 a.m. on a report of a male with a gun at an apartment building in Fort McMurray.

RCMP say officers entered the apartment building where they found the male suspect with a gun. One officer was shot, and the male suspect was killed.

Officials have not released the suspect's name.

A teenage boy who lives in the building says he heard police pull up to the scene early in the morning.

"I was in my apartment sleeping and all I heard was a bunch of sirens pull up, a bunch of cops were outside with their guns and there was a lot of screaming. A little while later there was a big smash and I'm guessing that was the front window," he said.

The incident is now subject to an investigation led by the Alberta Serious Incident Response Team (ASIRT) to determine if the actions of the officer who shot and killed the suspect were justified.

"The circumstances as I understand them at this point are that the police officer that was shot was not the individual that shot and killed the male," said ASIRT director Clifton Purvis.

The officer who shot the suspect was not injured.

"We've seized the firearms of all the police members who responded and we'll take steps to determine who fired their weapons and how many times."

The injured officer is in stable condition.

With files from Joel Gotlib