A social worker at a high school in Detroit is being lauded as a hero after he stopped a 17-year-old boy who allegedly was carrying a sawed-off shotgun and wrestled the boy to the ground.

No one was injured.

The Detroit Free Press reports 41-year-old social worker Idris Herring saw the teen rush through a metal detector Thursday at Westside Academy and glimpsed what looked a gun.

The boy fled after Herring tackled him and no arrests had been reported Saturday. Detroit Public Schools police said they were seeking a warrant for the teen's arrest.

There was no indication whether the shotgun was loaded.

The newspaper said the teen got the gun from a vehicle after having an altercation with a student at the school.