https://www.cnbc.com/2019/04/15/youtube-links-to-info-about-911-attacks-under-notre-dame-fire-videos.html

YouTube's algorithm placed a descriptive link of the Sept. 11 terrorist attacks directly under a live stream video of the Notre Dame Cathedral fire. The video was a live stream of the fire on France 24's YouTube page.

The link below the video, which directed to an Encyclopedia Britannica entry on the Sept. 11 attacks, was eventually removed.