An Air Canada outage that impacted operations at Toronto Pearson International Airport has been resolved, the airline said Thursday.

In a tweet posted early Thursday afternoon, Air Canada said it was "experiencing an IT issue affecting airport check-in at [Toronto Pearson]."

"Customers should check in on through mobile or on the web before going to the airport," the airline advised.

Toronto Pearson said the outage impacted functions such as check-in, baggage delivery, and gating.

At approximately 3:30 p.m., Air Canada announced that the issue had been resolved.