MIDDLETON, Wis. -

A student was hit with a Taser and an officer was injured in an incident at Middleton High School Tuesday, officials said.

The incident started when two people who were not Middleton High School students tried walking into the building during the school's lunch hour, school officials said. The two students were stopped by a staff member, but not before a 15-year-old Middleton student saw one of the people trying to get into the building.

Police said the 15-year-old and the other two people got into a fight on school grounds.

Once the fight ended, the 15-year-old, who was already on juvenile probation, started acting up when he was told he’d be taken to a juvenile center, Middleton police Chief Charles Foulke said.

“He fought with police officers. A Taser was deployed and he was taken into custody that way,” Foulke said.

The officer suffered minor injuries.

Three people were cited for being on school property and for disorderly conduct. The 15-year-old faces felony charges, including a charge for resisting arrest.

Foulke said the incident stems from an incident this summer at Falk Elementary School.