An officer whose partner was trying to stop a man who had repeatedly stabbed another on Adams Street late Monday shot the man in the thigh when he turned his knife towards the partner, Police Commissioner William Gross said at the scene.

Gross said officers were on patrol around 11:25 p.m. when they spotted one man repeatedly stabbing another in a fight outside 208 Adams St., near Dorchester Avenue.

The man refused orders to stop and when one officer tried to pull him away from the victim, he tried to stab the officer - whose partner shot him, Gross said.

Gross said officers applied a tourniquet to the alleged assailant's leg.

Both victim, who was stabbed in the neck, among other spots, and suspect were taken to local hospitals and are in stable condition, Gross said.

This morning, the Boston Police Department reported the alleged stabber, Luis Gomes, 32, of Dorchester, was charged with armed assault with intent to murder and assault by means of a dangerous weapon.