Donald Trump's campaign plane has been forced to make an emergency landing.
Mr Trump was on the way to a rally in Little Rock, Arkansas, when the Boeing 757 made the unscheduled stop at Nashville International Airport.
On Tuesday, Mr Trump was beaten into second place in the Iowa caucus by Ted Cruz, dealing an early blow to his presidential ambitions.
A spokeswoman for Mr Trump said he finished the journey in a charter aircraft.
The Republican front runner was expected to speak at Barton Coliseum in Little Rock to an audience of more than 11,500 supporters, ABC News reports.
Mr Trump arrived an hour and a half late, explaining to the crowd it was "rough" getting there, but there was "no way" he would have cancelled his trip.
He told his supporters: "I love Arkansas".
The Federal Aviation Authority (FAA) is investigating the incident.
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