The first shipment of the Russian S-400 missile system has arrived in Turkey, according to the Turkish defence ministry, moving the NATO member closer to a new standoff with the United States.

"The delivery of parts belonging to the system will continue in the coming days," Turkey's defence industry directorate said separately. "Once the system is completely ready, it will begin to be used in a way determined by the relevant authorities."

The United States has warned Turkey it will face economic sanctions if it goes ahead with the purchase of a Russian missile defense system. It has also said Turkey won’t be allowed to participate in the program to produce the high-tech F-35 fighter jets.

The first shipment of the Russian S-400 missile system has arrived in Turkey, according to the Turkish defence ministry, moving the NATO member closer to a new standoff with the United States.

"The delivery of parts belonging to the system will continue in the coming days," Turkey's defence industry directorate said separately. "Once the system is completely ready, it will begin to be used in a way determined by the relevant authorities."

The United States has warned Turkey it will face economic sanctions if it goes ahead with the purchase of a Russian missile defense system. It has also said Turkey won’t be allowed to participate in the program to produce the high-tech F-35 fighter jets.