The contract between Russia and Turkey on the supply of S-400 anti-aircraft missile systems remains in force, Turkish President Recep Tayyip Erdogan said on the NTV channel.
"Our process [with the Russian Federation to acquire the S-400] continues," TASS cited the Turkish leader as saying.
Erdogan did not specify at what stage the implementation of the contract is.
The president also noted that negotiations with the United States on the fifth-generation F-35 fighter jets are "moving in a positive direction."
