A middle school student threatened mass violence against a Maryland school district, according to police.
The eighth-grader at Kenmoor Middle School in Landover is the second student arrested in a threats investigation in Prince George's County this week.
The student is linked to a threat posted on social media Saturday, police said. The threat was not credible and was meant only as a disruption.
Police arrested a Parkdale High School student Monday in connection with a threat of violence at that school. The student set up a clown-themed Twitter account while in class and used it to threaten to harm anyone at the school in Riverdale Monday.
Both students are charged with threat of mass violence.
Investigators also identified a student who made a bomb threat to Bladensburg High School, police said. The threat does not appear to be credible. Police continue to investigate that threat, and the school is disciplining the student.
Police are maintaining higher than normal visibility at several public schools this week in response to the unsubstantiated threats.
Mysterious sightings of creepy clowns have been reported across the country in recent weeks.