Trump faces ridicule over idea to stop Notre-Dame fire

As the Notre Dame Cathedral burned on Monday, President Trump offered a not very helpful suggestion: "Perhaps flying water tankers," he tweeted.

France's Sécurité Civile, which deals with civil defence and crisis management, made it clear it had read and rejected Trump's tip. "All means are being used" to fight the flames, the group wrote in a rare English-language tweet, "except for water-bombing aircrafts which, if used, could lead to the collapse of the entire structure of the cathedral."

Star Trek legend George Takei was among those who mocked Trump over his idea.

Many Tweeters were left bemused by Trump's interjection.