Pakistan International Airlines spokesman Mashhood Tajwar says the action on Monday involved a small group of pilots and support staff and that it led to the cancelation of two international and four domestic flights.

PIA has posted multimillion dollar losses for the past five years Airline bosses have said they are considering sharing some routes with Turkish Airlines to try and increase profitability.

Some of its some 20,000 employees fear this will lead to job or pay cuts.

Strike organizers were not available for comment.