Major airports across the country experienced delays Wednesday night after problems with a Department of Homeland Security computer system caused problems at U.S. ports of entry, officials said.

The outage lasted about 90 minutes.

The outage, a spokeswoman for U.S. Customs and Border Protection said, meant officers had to process international travelers using “alternative procedures until the systems were back online.”

“At this time, there is no indication the service disruption was malicious in nature,” the spokeswoman said.

The airports involved included John F. Kennedy in New York, Boston’s Logan International, Dallas-Fort Worth and other ports of entry.

Chris Paolino, a spokesman for the Metropolitan Washington Airports Authority, said the nationwide issue centered on airports’ automated control kiosks. The outage rendered 60 kiosks at Dulles International Airport inoperable sometime Wednesday, he said.

Paolino said the glitch did not affect passengers’ “ability to enter the country. He said, as far as he knew, there were no lines.

Officials said Reagan National and Baltimore Washington International airports do not have the kiosks.