(ABC News) U.S. Customs and Border Protection computers are “back up and running” after an outage that snarled international arrivals, causing long lines at airports for travelers trying to enter the country.

Major airports around the country said Friday afternoon that their customs systems were impacted, including John F. Kennedy Airport in New York, LAX in Los Angeles, Bush Intercontinental Airport in Houston, O’Hare and Midway airports in Chicago, San Francisco International Airport, and Philadelphia International Airport.

Seattle-Tacoma International Airport had tweeted around 5:30 p.m. EST that CBP systems are back online. Less than an hour later, LAX tweeted that its CBP systems were “slowly getting back to normal.”

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