Ankara does not plan to drop out of the deal for the purchase of Russian S-400 missile defense systems, Turkish President Recep Tayyip Erdogan stated on Tuesday.

"We have a deal, which is currently being implemented. We are determined. We do not plan to drop out [of the S-400 deal]," the Turkish leader said in an interview with the Haberturk TV channel.

Erdogan reminded that Turkey would wish to purchase US Patriot missile defense systems; however, it has not received a better offer from the side of the US. "We have addressed the US with the offer to create a [working] group [to resolve delivery disputes], and we also offered to purchase Patriot from them. However, we also informed that the terms of the deal must be as advantageous as the ones offered by Russia. If this is so, we will take a step toward Patriot. However, the US has not made an advantageous offer," the president added.