Kellyanne Conway, a senior advisor to Donald Trump, was widely mocked on Thursday for referring to a "Bowling Green massacre" in a TV interview, prompting questions of whether this was another "alternative fact" .

Ms Conway mentioned the supposed attack while defending the president's immigration executive order to temporarily suspend travel from seven majority-Muslim nations.

“I bet it’s brand new information to people that President Obama had a six-month ban on the Iraqi refugee programme after two Iraqis came here to this country, were radicalised and they were the masterminds behind the Bowling Green massacre,” Ms Conway said in an interview with MSNBC.

“Most people don’t know that because it didn’t get covered.”