(Bloomberg) -- A software outage temporarily affected the U.K. Border Force’s automated entry gates, slowing arrivals at airports across the country.

Hubs in London Heathrow and Manchester reported issues before the Home Office said the problem was resolved. 

“We’re aware of a systems failure impacting the e-gates, which are staffed & operated by Border Force,” Heathrow said in a tweet. “This issue is impacting a number of ports of entry.”

Travelers reported long lines at Heathrow, with documentary filmmaker Louis Theroux describing a “human logjam” at the nation’s largest airport.

The issue was identified quickly and has been resolved quickly, a Home Office spokeswoman said by email. “We have been working hard to minimize disruption, and apologize to all passengers for the inconvenience caused,” it said. 

London Gatwick opened more manual gates, and had no backups as of 2 p.m. local time, a spokesman said in an email. Manchester, whose parent company also owns London Stansted, was “working hard alongside UKBF to process passengers as efficiently as possible,” it said on Twitter.

Outages are common, and the problem would likely be related to central servers, said Lucy Moreton, a spokeswoman for the Immigration Services Union. 

©2021 Bloomberg L.P.