A man who refused to drop a long gun was found dead in a Laurel home on Saturday after officers fired shots, according to Howard County Police.

An independent division of the Maryland Attorney General’s Office is investigating the shooting.

Officials say it is unclear whether the man died from his own gun or from police gunfire. Three people were safely evacuated from the residence, and no officers were injured.

Police responded to a domestic disturbance on the 10000 block of American Pharoah Lane, a townhouse community near the Laurel Park racetrack, just after 3 p.m., according to a news release. The 911 caller said there was a man banging on the front door.

On Monday, the Independent Investigations Division said a preliminary investigation found that the man fired several shotgun rounds at the front door and got into the home through a window.

When police arrived on the scene, they could see the man in a second-floor window with a long gun and a woman on the building’s ledge.

Police said they repeatedly asked the man to drop his weapon and the man refused. Two police officers and the man fired shots, according to officials.

The county police’s tactical team then created a barricade, and at 5:40 p.m., officers entered the home. The man was found dead inside, suffering from apparent gunshot wounds, according to a news release.

When they went inside, police found shell casings from an unknown weapon, other loaded firearms and a knife, according to officials.

Officers wore body cameras that captured the incident. The investigations division said footage is generally released within 20 days of an incident.

Howard County Police referred all inquiries to the IID of the Maryland Attorney General’s Office.