PEORIA, Ariz. (AP) — Peoria police say an 18-year-old student at Liberty High School has been arrested because there was a gun in his vehicle when it was parked at the school.

Police say Michael Helt was arrested Wednesday on suspicion of carrying a weapon on school grounds after officers investigated an anonymous tip and located the gun.

Police say Helt did not make any threats and told officers it was an accident that he brought the gun to school.

It's not immediately known whether Helt has an attorney who could comment on the allegations.