TORONTO - Canada's air navigation service provider says flights were delayed Saturday at Toronto's Pearson International Airport due to what it called "resource constraints."

A tweet from NAV Canada said that some flights at the airport were delayed, and that its team was "moving aircraft safely, and as quickly as possible."

Passengers were advised to check the status of their flights with their airline.

Air Canada said on X that the NAV Canada issues were causing delays and cancellations across the airline's network.

In an emailed statement, NAV Canada explained that it implemented a Traffic Management Initiative, which it said was required to manage demand safely in light of staffing availability and increased traffic this weekend.

The website for Pearson showed most arrivals at the

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