A problem in the computer systems used by United States Customs and Border Protection (CBP) authorities has left thousands stuck in airports and unable to enter the country, according to The Verge.

Officials from the CBP confirmed to CBS News that the outage was nationwide, after many passengers took to Twitter, expressing their frustration at being stranded and sharing photos of huge lines.

A problem in the computer systems used by United States Customs and Border Protection (CBP) authorities has left thousands stuck in airports and unable to enter the country. Officials from the CBP confirmed to CBS News that the outage was nationwide, after many passengers took to Twitter, expressing their frustration at being stranded and sharing photos of huge lines.