WASHINGTON (KDKA/AP) – U.S. Customs and Border Protection issued a statement Monday saying a processing system outage caused delays at various airports.

CBP officers continued processing international travelers using “alternative procedures” until the system came back online but waits were longer than usual at some airports, according to the statement.

Officers still had access to national security databases and all travelers were screened according to security standards during the outage, the CBP said.

The release does not give a cause for the disruption but said it doesn’t seem to be malicious.

Here in Pittsburgh, officials at Pittsburgh International Airport sent out a tweet saying they were experiencing no problems on Monday. Their next international flight is scheduled to arrive at 1:30 p.m. Tuesday.

In Atlanta tough, CBP public affairs officer Robert Brisley said the outage at the city’s airport lasted about an hour from late afternoon into early evening. He said that officers were working to recover quickly afterward but even short outages can lead to backups at the airport, one of the world’s busiest.

He said the agency apologizes to travelers who were delayed getting into the country after long flights.

Join The Conversation On The KDKA Facebook Page
Stay Up To Date, Follow KDKA On Twitter

(TM and © Copyright 2017 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2017 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)