The Metropolitan Police Department has announced the arrest of a male juvenile who’s charged with seven counts of falsely reporting a “weapon of mass destruction” across four District schools, according to a Thursday release.

The alleged threats spanned nearly two weeks, from Jan. 19 to Feb. 1. this year, MPD says; the juvenile, who lives in Northeast, allegedly called them in from the same private phone number during morning hours. The arrest was made Wednesday.

“During all of the incidents, the Metropolitan Police Department was immediately notified and conducted a search of the locations and surrounding areas,” the release states. “The search was negative and no hazardous materials were found. All staff and students were accounted for in good health.”

Below is a list of schools affected by the calls, according to MPD:

  • Kingsman Academy Public Charter School in the 1300 block of E Street NE on Tuesday, Jan. 19, 2016 at approximately 11:45 a.m.
  • Browne Education Campus in the 800 block of 26th Street NE on Tuesday, Jan. 19, 2016 at approximately 11:54 a.m.
  • Browne Education Campus in the 800 block of 26th Street NE on Thursday, Jan. 28, 2016 at approximately 10 a.m.
  • Johnson John Hayden Middle School in the 1400 block of Bruce Place SE on Thursday, Jan. 28, 2016 at approximately 10:02 a.m.
  • Kingsman Academy Public Charter School in the 1300 block of E Street NE on Thursday, Jan. 28, 2016 at approximately 11:11 a.m.
  • Kingsman Academy Public Charter School in the 1300 block of E Street NE on Thursday, Jan. 28, 2016 at approximately 8:57 a.m.
  • Wheatley Education Campus in the 1200 block of Neal Street NE on Monday, Feb. 1, 2016 at approximately 10:48 a.m.