A man believed to be in his late 50s showed up at at a Prescott camp with a gun and warned the band students to shut up, deputies said.

The man approached the field where the 52 high-school students from Peoria High School were practicing at Emmanuel Pines Camp on the 3000 block of Spence Springs Road and warned them to stop making noise, according to the Yavapai County Sheriff's Office.

The gunman reportedly said "stop making noise. Morning and afternoon is OK, but nighttime is not," deputies said.

He later turned to the band director asking him if they had an understanding, according to the Sheriff's Office.

Throughout the incident, the man was allegedly waving his gun and at times pointing it at the band students and staff, deputies said.

The students were escorted off the field and placed on lockdown while deputies searched for the gunman. They were unable to find him but believe it is likely he lives near the camp.

Yavapai County Sheriff's Office is seeking assistance from the public in identifying and locating the man.

The man has been described as White, in his 50s, and approximately 6 feet tall with short gray hair. He was wearing gray basketball-type shorts with a stripe on the side and a red or salmon colored polo shirt. No facial hair was seen. He had a tattoo on his right, lower forearm and a "beer belly". The man apparently spoke with an accent of some type, possibly British or New York based, police said.

One witness did not notice the accent, but commented that the man's speech was slurred.

The gun was described as a black semi-automatic handgun with a short barrel.

Please contact the Sheriff's Office at 928-771-3260 or report the information anonymously to Yavapai Silent Witness at 1-800-932-3232