Donald Trump rally, Lowell Massachusetts
US Republican presidential candidate Donald Trump speaks at a campaign rally in Lowell, MassachusettsBrian Snyder/Reuters

Donald Trump has once again come under fire on social media after many users suggested he mistakenly thought Paris was in Germany. The US presidential candidate tweeted to his 5.5 million followers during his latest rant in the wake of the shooting of a man outside a Paris police station.

French police shot a man wearing a fake suicide vest who brandished a sheet of paper emblazoned with the Islamic State (Isis) flag on the one year anniversary of the Charlie Hebdo shooting.

The billionaire tycoon wrote: "Man shot inside Paris police station. Just announced that terror threat is at highest level. Germany is a total mess-big crime. GET SMART!"

Many took this to indicate the 69-year-old presidential candidate mistakenly thought the French capital was actually in Germany in a tweet that used the shooting to back up his often-criticised views on immigrants and Muslims.

However, for all his flaws, it is unlikely Trump does not know Paris is in France and instead ran out of Twitter's 140-character limit while trying to tie the shooting in Paris with the alleged sexual assaults in Cologne, Germany by men described as being from the "north African or Arab world".