Nationwide outage of US CBP computer systems. Easily 5,000+ passengers in line at Dulles. pic.twitter.com/JGJD95sfFx — Rebekah Tromble (@RebekahKTromble) August 16, 2019

According to officials at the JFK Airport in New York, the issue has impacted the processing system nationwide but airports have already begun to switch over to an older (albeit slower) backup. LAX in California has also confirmed that its systems are down and urges travellers to check the status of their flight before heading to the airport.

The CBP has not yet issued an official statement regarding the problem but has released the following tweet: