A contract on the delivery of the second batch of S-400 anti-aircraft missile systems to Turkey has been signed and the sides are discussing the contract’s financial terms, Head of Russia’s state arms seller Rosoboronexport Alexander Mikheyev told reporters on Sunday. This reported by TASS.

"The contract has been signed," the chief executive said, replying to the corresponding question.

The sides are now discussing "the financial arrangement of implementing the contract," he specified.

The Rosoboronexport chief said that the timeframe of implementing the contract would depend "on our partners’ readiness to finally resolve the procedural issues with the financing of this project,"