A person was taken into custody Monday after a lockdown was instituted at Sanborn Regional High School in Kingston, N.H., following reports of a gunman with a shotgun.

The superintendent of the Sanborn Regional School District said in a Facebook message that the school went under lockdown around 12:15 p.m. when someone called authorities to report a person with a shotgun. The person who was taken into custody was not identified.

"The school took immediate action by notifying the Kingston Police Department and placed the school into a lockdown," Superintendent Dr. Brian Blake wrote in the Facebook message. "The Kingston Police Department, in conjunction with other law enforcement agencies, responded, deemed the school to be safe, and determined that no weapon had entered the building. We take the safety of our students very seriously and we will continue to work with our local authorities to ensure that our campus is a safe place for all."

A police search of the high school, conducted at around 1:30 p.m., did not yield any guns, according to New Hampshire television station WMUR. The lockdown was lifted after the search, and the school was deemed safe.

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