The U.S. Customs and Border Protection Processing System is Back up at Airports Nation-Wide, After Hundreds Of People Were Delayed

A U.S. Customs and Border Protection (CBP) system shut down is over, after hundreds of people waited in line to be processed at airports across the country.

“The affected systems are coming back online and travelers are being processed,” CBP said in a Tweet. “CBP will continue to monitor the incident. There is no indication the disruption was malicious in nature at this time.”

In an earlier Friday statement to TIME, CBP, which oversees entry into the U.S. at all international airports, said that it was experiencing a “temporary outage” with its processing systems at airports, but did not say how many were impacted.

“CBP officers continue to process international travelers using alternative procedures until systems are back online,” a CBP spokesperson said. “Travelers at some ports of entry are experiencing longer than usual wait times and CBP officers are working to process travelers as quickly as possible while maintaining the highest levels of security.”

According to tweets by John F. Kennedy International Airport and Los Angeles International Airport, agents began processing passengers manually until the system was fixed. San Francisco International Airport and Dulles International Airport, Dallas-Fort Worth International Airport and O’Hare International Airport were also affected.

Meanwhile, passengers took to social media to vent their frustration.