Manchester City's Etihad Stadium was evacuated ahead of the club's Champions League clash v Barcelona on Tuesday evening.
At around 16:30 crowds were pictured outside the ground, as they were forced to leave due to an unspecified 'emergency'.
However, people let back inside just after 17:00, with reports indicating that a fire alarm was the reason for the evacuation.
There is no indication there was any issue at the ground, as it is believed it was a false alarm.