US Vice-President Mike Pence has warned Turkey against buying a Russian S-400 anti-aircraft missile system that Washington sees as a threat to US jets.
Speaking at a NATO 70th anniversary event, Pence said Turkey “must choose” between remaining a key Nato member or risk the security of that partnership “by making such reckless decisions”.
Turkey responded that the purchase of the advanced system was a done deal.
Turkish Foreign Minister Mevlut Cavusoglu repeated that the deal with Russia – thought to be worth about £2.5bn (£1.9bn) – would not be cancelled.
In a tweet, Turkey’s vice-president later wrote: “The United States must choose.
“Does it want to remain Turkey’s ally or risk our friendship by joining forces with terrorists to undermine its Nato ally’s defence against its enemies?”