No Russian personnel will operate the S-400 missile defense systems after they enter service in Turkey, Ismail Demir, head of the Turkish Defense Industry Directorate, said in a TV interview with CNN Turk on Saturday.

"Turkish specialists are continuing their training in Russia. We have reiterated more than once that there will be no Russian personnel," he said adding that Turkey had no plans to put aside the S-400 missile defense systems having purchased them from Russia.

"We are planning to put the Russian systems into service in April 2020," he noted.

On Friday, Turkish presidential spokesman, Ibrahim Kalin, said, "Turkey will not back out of the S-400 deal. The systems will be put into operation."