Washington: YouTube's new tool for battling misinformation mistakenly linked videos of the massive fire at Notre Dame Cathedral in Paris to the September 11, 2001, terrorist attacks in the US and later issued an apology for the "wrong call".

As images of the iconic tower falling played on newscasts around the world on Monday - and on the YouTube channels mirroring those newscasts - "information panels" appeared in boxes below the videos providing details about the collapses of New York's World Trade Center after the terrorist attack, which killed thousands of people.