RIVERDALE, Md. — Prince George’s County police have arrested a teenager accused of setting up a clown-themed Twitter account that he used to threaten students at his high school in Riverdale, Maryland.

Police said in a news release that the unidentified juvenile was arrested Monday and faces multiple charges, including making a threat of mass violence. Authorities say the boy created the account in class at Parkdale High School following reports of eerie-looking clowns popping up in different states and scaring residents.

Authorities say they have also identified a student who made a bomb threat to Bladensburg High School via social media. No charges had yet been filed.

Meanwhile deputies in western Maryland say they have identified two juveniles involved in posting clown threats on social media directed at four Washington County schools.