Footage posted to YouTube in February 2013 was rediscovered by Reddit on Wednesday, where it was dubbed the “clearest 9/11 video” anyone had ever seen.

CAUTION: VIDEO CONTAINS EXTREMELY GRAPHIC CONTENT

WATCH:

According to the YouTube description, the footage begins 19 seconds after the first plane crashed into the North Tower. It was filmed at the Independence School on Greenwich Street by Jim Huibregtse.

The first ten minutes show smoke billowing out of the hole in the North Tower. Though Huibregtse stopped filming prior to the second impact, he captured the aftermath approximately 11 minutes and 22 seconds into the footage.

About 15 minutes in, the South Tower collapses, enveloping the surrounding area in dust clouds.

Perhaps the most disturbing clip comes at the 21 minute mark, when people begin to jump out of windows on the 95th floor.

The video was archived and published through the Freedom of Information Act.

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