A North Carolina sheriff’s deputy who authorities said slammed a student to the ground twice before dragging him through a school hallway — a use of force caught on video — is no longer with the department, according to authorities.

Sheriff Curtis Brame of Vance County confirmed the officer’s departure in a statement on Monday. The sheriff’s office would not say if the deputy was fired or if he resigned.

The violent episode took place on Thursday at Vance County Middle School in Henderson, N.C., according to a spokeswoman for the school district, which is about an hour north of Raleigh.

The deputy, who serves as a school resource officer, has not been named. He is the subject of an investigation by the State Bureau of Investigation, which the authorities said had been called in by the sheriff to determine whether the use of force was justified or whether criminal charges against the officer were warranted.