RENO, Nev. (AP) - A 13-year-old student at a Reno middle school was arrested Thursday for allegedly making several threatening phone calls about bombing the school and harming a staff member.

The eighth grader was arrested after a witness told school district police he saw the boy make the phone calls Wednesday in his shop class at Vaughn Middle School, said Steve Mulvenon, spokesman for the Washoe County School District.

The school briefly was locked down Wednesday while police investigated the threats.

At the end of the school day, a public announcement over the intercom explained to students what prompted the lock down and asked students to come forward with any information. A student did, allowing investigators to identify the male student, Mulvenon said.

The teen has been charged with using telecommunications to make a threatening phone call, disturbance of the school and making a bomb threat. His name has not been released because he is a minor.

(Copyright 2008 by The Associated Press. All Rights Reserved.)