Passengers leaving for the U.S. from Pearson Airport experienced delays Friday evening due to a nationwide Customs and Border Protection IT issue.

The airport previously said it expected Friday to be its busiest day of the year, with more than 172,000 passengers expected.

As of just before 7 p.m., U.S. Customs and Border Protection said the affected systems are coming back online and a message on Pearson’s website confirmed that the disruption has been resolved.

“There is no indication the disruption was malicious in nature at this time,” U.S. Customs and Border Protection said in a tweet.

U.S. Customs and Border Protection previously confirmed they were experiencing a “temporary outage” with their processing systems.

They said they were “taking immediate action to address the technology disruption” and are continuing to process international travellers using “alternative procedures.”

“CBP officers are working to process travelers as quickly as possible while maintaining the highest levels of security,” they said.