COLUMBUS, Texas (AP) — A Texas school district is closed after a threat was made against the district on social media.

The Columbus Independent School District says in a post on its website that the school will be closed Monday after the threat was discovered shortly before midnight Sunday.

The nature of the threat was not disclosed. The post said students saw the post and notified their parents and school officials.

The school says local law enforcement is investigating and school officials are cooperating.

Columbus is about 70 miles (113 kilometers) west of Houston.

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