Police believe three children and a 24-year-old man broke into a Madison school.

Around 7:30 a.m. Friday, the Somerset County Sheriff’s Office received a report of a missing 13-year-old from a home in Madison, Sheriff Dale Lancaster said in a statement Wednesday. Deputy Adam Estabrook responded and learned the teen had left the home on foot in the middle of the night.

A few hours later, Estabrook responded to Main Street Middle School for a reported break-in that appeared to have happened overnight, Lancaster said.

Investigators determined the missing 13-year-old, along with a 12-year-old, a 15-year-old and Daxton Winchester, 24, of Madison, entered the school through the roof around 2 a.m., Lancaster said. Police did not find any damage inside.

The 13-year-old, the 15-year-old and Winchester were charged with criminal trespass. The teens are due in court in Skowhegan Oct. 5. Winchester is due to appear there Oct. 7.

Deputies, meanwhile, identified the 12-year-old and were working to get in touch with the child’s family, he sheriff said.

Last month, the sheriff’s office arrested a 30-year-old man for breaking into the same school. He allegedly stole several items worth more than $1,000, most of which deputies recovered.