Flights all over the world ran into delays Thursday night because of a major glitch with United Airlines' computer system.
"Earlier today we experienced a system issue causing some flight delays," said a United spokesman in a statement. "As of 8 a.m. BST [3 a.m ET], we have resolved that issue and these flights are resuming. We apologize for the inconvenience."
There's no word just yet on exactly how many flights were delayed or cancelled by the technical failure.
United also suffered a pair of technical failures in the middle of 2015, according to Reuters, but it's far from the only airline to endure computer system troubles of late. Back in August Delta had to cancel roughly 1,000 flights in a single day due to a power outage. British Airways suffered a systemwide computer problem in September that caused delays across its network.
A common theme in the recent computer system failures is that the damage caused is widespread and tends to affect a significant number of passengers simultaneously.
Some passengers reported via Twitter that they were forced to wait on board planes stuck on the tarmac or in terminals for several hours.
Many were frustrated about the lack of information the airline was giving them about the situation. Others complained that they had been waiting for their luggage to arrive for up to seven hours.
Correction, 11:52 a.m. PT: This story originally misstated the scope of United's recent technical problems. The airline experienced some glitches in mid-2015.