Ankara will consider it an act of aggression, if a Turkish warplane is shot down by a Russian anti-aircraft missile system in Syrian airspace, said Recep Erdogan in an interview with CNN.

According to Erdogan, in this case Turkey will be forced ‘to take steps which are undoubtedly non-negotiable’.

It was reported earlier that a Russian SU-24 fighter jet which violated Turkish airspace on November 24, was shot down by two Turkish F-16 fighter jets patrolling the area.

Russian President Vladimir Putin demanded apologies and compensation from the Turkish government. In his turn, the Turkish President said Ankara would not apologize to Moscow for shooting down the Russian fighter jet.

Following the incident, S-400 Russian anti-aircraft missile systems were deployed at the Khmeimim airbase in Syria on November 26.