Leeds Bradford Airport (LBA) was thrown into turmoil after an "unplanned fire alarm" forced hundreds to queue outside on a "hot, sweaty day" while the airport was evacuated.
Photos show hundreds of passengers standing outside the airport, between parked cars under the glare of the scorching weather. One passenger says he was made to wait outside for over an hour in the heat, and claims others must have been there for a couple of hours at least.
But LBA say passengers were forced outside for safety precautions and no passengers missed their flights. Security staff are looking into who or what set off the unplanned fire alarm at 12.40pm today (June 20).