Threat: "I am going to shoot up Horace Greeley High”

Posted: Updated:
CHAPPAQUA -

Security remains on high alert at a Westchester high school after a threat on Christmas Day.

According to a letter sent to parents, the threat came from a person using Amazon's online streaming video platform "Twitch" and stated, "I am going to shoot up Horace Greeley High School."

Amazon Security and the New Castle Police Department both say it was not a credible threat, although there was an increased police presence Thursday at all schools in the Chappaqua Central School District.

There is no word yet who is responsible for the threat.

Anyone with safety concerns is asked to contact the school district or police.

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