An 18-year-old student is in custody after a threat was made towards his High school over social media.

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Friday morning on the students Snapchat account, he sent out videos claiming he was going to shoot up Centennial High School and then shoot himself. His followers who watched the videos immediately reported the student to school authorities, who in turn notified the police.

School district officials said they placed the school on lockdown while they investigated. The lockdown was lifted shortly after the student's arrest. He was found on his school bus and allegedly had a gun in his possession. The identity of the student has not been released.

District officials are holding a news conference at noon to discuss the threat and the arrest.