Sky News Australia and USA media outlets are reporting global airport systems have failed across the country on one of the busiest evenings to travel in the states.
Travelers at O'Hare International Airport were among thousands delayed at their destinations nationwide due to a technology glitch with U.S. Customs and Border Protection applications on Monday night, authorities said.
Operations at other major airports, including John F. Kennedy in NY and Fort Worth International in Dallas, were also impacted. It added that all airports came back online after the outage lasted from 7:30 pm to about 9:30 pm ET.
"During the technology disruption, CBP had access to national security-related databases and all travelers were screened according to security standards", CBP said in a statement.
Denver International Airport, also said services had been affected. No indication the disruption was malicious in nature. However, holidaymakers used social media to complain about severe delays.
"The machines for customs and border patrol aren't working, so all the things are printing out with X's on them and everyone's freaking out, so the lines about an hour to get thru", said Brittany Jason.
"30 minutes. The line to just process special assistance is wrapped around the corner".
"Another look at a brutal 2018 start at #Miami's airport".
This story will be updated with more information when available.