A computer system of the US Department of Homeland Security that checks airline passengers against terrorism watch lists suffered a glitch on Wednesday, leading to delays at major airports.
The outage lasted about 90 minutes and affected several airports including New York City's John F. Kennedy Airport, Boston, Dallas-Fort Worth, Charlotte, North Carolina, and Baltimore.
During the disruption, Customs and Border Protection officers were forced to employ ‘alternative procedures’ to check travellers, resulting in delays in security screening.
According to the US Department of Homeland Security the disruption was likely not a result of a cyber-attack.
According to NBC News, electronic kiosks where passengers can fill out self-service declaration forms were down and people were filling out green paper forms instead.
US Customs and Border Protection officials said the problem was with the computers and kiosks used by passengers arriving in the United States at airports nationwide.