Five Arlington High School students were suspended, and several face criminal charges after an apparent drug deal escalated into an armed robbery in school restroom on Monday, Jan. 25, according to Capt. Robert Bongiorno.

Police allege that a trio of students arranged to purchase a bag of marijuana from an AHS student, setting the stage for an elaborate plan for an armed robbery. After the victim was lured into a restroom, he was ambushed by another suspect who was hiding in a stall, placed into a headlock, and held at knifepoint while the suspects stole his drugs and money.

During the robbery, the third suspect stood outside the door as a lookout and prevented people from entering the restroom. At the conclusion of the robbery, a fourth student held the knife for one of the robbers, a police report said.

Police were tipped off about the robbery by the victim’s sister, and immediately launched an investigation. They found the fourth student at the high school and in possession of the knife during the investigation.

Three students were arrested and charged with armed robbery; two of those students face additional charges of possession of a dangerous weapon on school grounds.

Additionally, the student who was selling the marijuana will face charges for drug distribution. Police did not release the names of any of the suspects, because all are juveniles.