US threatens sanctions over Turkey missile purchase

The US is threatening to impose sanctions on Turkey if it does not cancel a deal to buy a Russian S400 missile defence system.

The US is warning Turkey there will be consequences if it moves forward with a plan to buy Russian S-400 defence missiles.

The two NATO allies have sparred for months over Turkey’s plans to buy the weapons from Moscow.

Al Jazeera’s Sinem Koseoglu has more from Istanbul.