A man fatally shot by an officer in Virginia on Monday evening was armed with a BB gun that looked like a handgun, police said.

The officer encountered 28-year-old Corey Jason Achstein of Suffolk after responding to reports of a white man chasing three juveniles and threatening them with a gun, according to Suffolk police.

After another officer arrived at the scene, Police said one of the officers shot Achstein, based on safety concerns and the man's actions.

Police didn't say which officer fired the shot.

Achstein later died at a hospital.

Police say a gun recovered at the scene was a "realistic style pneumatic" BB gun.

The officers, James Babor and Cheryl Abrigo, were placed on administrative leave.

Police are conducting criminal and internal investigations.