A fault on UK Border Force computers, including automatic passport check-in desks, caused systems to crash late this evening, causing widespread chaos for passengers at airports such as Heathrow, Gatwick, Stansted and Birmingham.
Extra staff were drafted in to try and reduce the queues.
Passengers tweeted their frustration through the evening:
A Government spokesman said: "We apologise for any additional time this adds to passengers' journeys."
More top news
Devon Staples had been drinking during Independence Day celebrations when he placed a fireworks on the top of his head and lit the fuse.
World Number 4 Murray has won their previous five encounters, but Karlovic tops the tournament's aces leaderboard so far.
The Britain's Got Talent judge was accused of singing the national anthem in an American accent and getting the words wrong.