Nassau police say they have arrested a student at Elmont High School after a switchblade was found in his backpack.

Detectives say they responded to the school at 555 Ridge Road on Tuesday afternoon after they received a 911 call. The 18-year-old was detained by school staff and was placed into police custody upon their arrival.

Police say Dayvion Campbell, from Elmont, is charged with criminal possession of a weapon and was released on an appearance ticket to return to the youth section of the First District Court in Hempstead at a later date.