The students fled to the faculty office and called 112.

STUDENTS at the Aninkainen Vocational School in Turku, southwestern Finland, were shocked on Wednesday when a drunk and disorderly man wearing camouflage pants and a beanie entered the school’s billiards room and pulled out a steel weapon about 30 to 40 centimeters long. He pointed it at two students in the room.
The students fled to the faculty office and called 112.
Several police patrols were quickly on the scene and, with the help of school staff, searched the premises.
The situation remained calm during the police response, and police remained on campus until the end of the school day.
The suspect left the school before police arrived.
The man is “suspected of an illegal threat,” according to a police statement. The suspect was caught on school surveillance video.
The suspect had not been found as of this writing.