Passport eGates across the UK were affected by the outage, which began on Friday night (26 May) and wasn’t resolved until Saturday evening (27 May).
Major queues were reported at several of the UK’s largest airports, including Heathrow, Manchester and Gatwick, after Border Force officials were forced to resort to manual checks.
The BBC reports the fault as being down to an "IT issue". The Home Office tweeted Saturday lunchtime it was aware of a "technical nationwide border system issue".
