Updated

Turkey's military says two Syrian jets and surface-to-air missile systems based in Syria have harassed three F-16 jets patrolling the Turkish-Syrian border.

A military statement on Sunday said the missile systems locked radar on the Turkish jets for two minutes while Syrian SU-22 and SU-24 jets placed the Turkish planes under lock for two minutes and 35 seconds. It said the incidents occurred on Saturday.

Turkey has been complaining about harassment of its jets on border patrols for the past week.

Last week, two Russian warplanes strayed into Turkish airspace during Russia's air campaign in Syria, drawing strong protests from Turkey and its NATO allies.