• The threat message was posted by an unidentified person claiming to be a student of  Millennium Brooklyn High School in Brooklyn
  • It allegedly had copy-pasted contents from recent social media threats against schools in New York City and Long Island
  • Police have started an investigation

Brooklyn, New York -- A person claiming to be a student threatened to shoot up an elite high school in New York and posted a hit list on social media, police said Sunday.

Authorities are investigating the unidentified suspect who claimed to live stream the assault planned at Millennium Brooklyn High School (MBHS) in Brooklyn. An employee at Park Slope school, which shares the same building, reported the threat to police Friday morning.

"I'm going to shoot up my school Millennium Brooklyn High School New York with an MP15 assault rifle and a Glock 17 pistol with hundreds of rounds of ammunition in a few weeks and Livestream it on my Instagram," the suspect wrote Thursday on the chat website Omegle, New York Post reported.

The suspected shooter even detailed how they planned to have a shootout with police while "dancing military-style and abba gimme gimme Eurobeat" music would be played. The post also included the names of more than a dozen students who would be targeted.

"I hope to take at least 15-30 people with me mostly in the classrooms or hallways, plus some people fleeing the building," the person wrote.

The Park Slope employee who alerted police also sent an e-mail to parents informing them about the threat.

The e-mail claimed the threat message had copy-pasted contents from recent social media threats against schools in New York City and Long Island, reported local radio station 1010 Wins.

The school has reportedly requested an investigation into the incident.

"Last night, an unknown person posted a threat to one of the schools on our campus, Millennium Brooklyn High School, on a site called Omegle," the employee said in the e-mail.

"The post appears copy and pasted from social media threats that have been made in previous months to schools throughout our area, but it does include the school name and the names of some students. We are taking the threat seriously…," the email read.

After the tragic shooting in Uvalde that took the lives of 19 children and two teachers last month, there have been several reports of mass shooting threats at schools in New York City and Long Island.

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