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US Customs and Border Protection says systems are being restored after earlier outage snarled international arrivals at airports

Key Points
  • U.S. Customs and Border Protection says systems are being restored after an earlier outage held up immigration processing at U.S. airports around the country.
  • The issue delayed arriving travelers who swarmed entry checkpoints.
  • CBP says it will continue to monitor the incident, adding that there's no indication the disruption was malicious in nature.
An international air traveler is cleared by a U.S. Customs and Border Protection Officer inside the U.S. Customs and Immigration area at Dulles International Airport.
Paul J. Richards | AFP | Getty Images

U.S. Customs and Border Protection said Friday evening that systems around the country were being restored after an earlier outage prevented U.S. immigration officials from processing thousands of arriving passengers during a busy summer travel day.

It wasn't immediately clear what caused the problem at U.S. Customs and Border Protection, but the agency said it will continue investigating. There was no indication that the system was intentionally derailed, according to a CPB official.

CBP officers used "alternative procedures" to process travelers arriving from abroad, the agency said.

Some travelers posted images on social media of long lines at checkpoints at airports in Washington, D.C., and Houston.

One traveler tweeted that passengers on her flight from London weren't allowed to deplane upon arrival in Boston because of the issue.