01/10/2013 20:12 EST | Updated 03/12/2013 05:12 EDT

Flight delays reported at Pearson after computer glitch

Travellers using Toronto's Pearson International Airport are being warned to expect some delays Thursday evening.

A NAV Canada computer has failed and that has had an effect on airport operations.

While NAV Canada is trying to fix the problem a backlog has developed for departures.

Some passengers have reported delays of over an hour.

The Greater Toronto Airports Authority is asking travellers to check the status of their flights before heading to the airport.