Donald Trump has urged people to "get smart" after a man carrying a meat cleaver and a fake suicide belt was shot dead outside a police station in northern Paris today.
But the Republican candidate failed to heed his own advice after he seemed to suggest Paris was actually in Germany.
He tweeted: "Man shot inside Paris police station. Just announced that terror threat is at highest level. Germany is a total mess-big crime. GET SMART!"
The tweet provided much needed light relief for a world still reeling from the news a man had tried to enter a police station with a knife exactly a year after the Charlie Hebdo attack which killed 17 people over three days last year.
The phrase "Paris is in Germany" is now trending on Twitter, and people took to the social networking site to give the controversial politician a geography lesson.