The stair truck attached to Air Force One appeared to have suffered a malfunction, and several officials had to manually push it away from the airfield as reporters looked on.
Trump's North Korean counterpart also got involved in a blunder seconds after he arrived in Hanoi for the talks, when his attendant skipped a beat and rushed off the train to stand by the leader's side.
Their highly-expected summit ended up yielding no results, with Donald Trump admitting that he was forced to walk away after Kim Jong-un demanded that all sanctions be lifted in exchange for complete de-nuclearisation — something Trump was not ready to go for.