BEIRUT: Turkey has called a meeting of NATO member states after one of its warplanes was shot down by Syria, in what it claims was international airspace.

Under article 4 of NATO's charter, member countries can request consultation when they feel their security is threatened. NATO will meet tomorrow to discuss its response to the shooting.

Syria says the jet was in Syrian airspace when it was hit, but the Turkish Foreign Minister, Ahmet Davutoglu, claims it was in international airspace when it was attacked on Friday.

He dismissed an earlier statement by Syria that it had not known the plane was Turkish, saying it was clearly marked.