Chaun Lamar Johnson II, 18, of Austin was charged with gross misdemeanor fourth-degree assault of a school official on Thursday in Mower County District Court.

According to the court report, officers responded to a call of an assault at 8:52 a.m. on Wednesday at the Oakland Education Center.

When they arrived, an officer saw Johnson standing outside the building with a small cut on his hand that was bleeding. The officer told Johnson to go inside and clean off his hand, which he did. Johnson was placed in the conference room while an officer spoke to the teacher who was assaulted.

The teacher told police Johnson came to his class very agitated. He told another teacher Johnson should go to the mental health room for his behavior.

He then told police Johnson threw a desk at him, which missed, then started throwing other classroom objects at him. The teacher ran and was chased by Johnson, who punched him three times in the back. The teacher then turned the corner and caught his foot on the carpet, causing him to turn his ankle and fall.

Johnson jumped on top of him and started punching him until another teacher intervened.

The teacher went to the hospital and was diagnosed with a sprained ankle and a scapula contusion with nerve impingement.

Johnson is scheduled to appear in court again on Sept. 25.