Mustafa Timur Ozkan, the organizer of the photo exhibition where Russian Ambassador in Ankara Andrey Karlov was killed in 2016, was arrested in Ankara on charges of involvement in the murder, local media reported on Thursday.
Chemezov said Turkey would buy four batteries and that the first deliveries would start in March 2020, according to Kommersant.
Earlier this week, Turkish Defense Minister Nurettin Canikli said the two countries sorted out the remaining details behind the deal, agreeing that Ankara is to receive two systems and four batteries from Russian Federation.
He said Moscow was expected to begin the first deliveries in March 2020 and that Turkey was the first North Atlantic Treaty Organisation member state to acquire the advanced S-400 missile system.More news: Mahadayi talks only after Karnataka poll: Goa BJP
The reason for the discrepancy over the number of batteries Russian Federation would supply Turkey was not immediately clear. It is intended for the destruction of aviation, cruise and ballistic missiles, including medium range, and can be used against ground targets.
The statement added that details of the payment had not been shared due to confidentiality principles agreed upon between the parties.
Relations between Moscow and Ankara deteriorated sharply in 2015 after Turkey shot down a Russian air force jet that it said had crossed into Turkish airspace, but they have since repaired ties despite having backed different sides in the Syrian war.
Canikli, during a joint news conference held in Tunisia by Turkish President Recep Tayyip Erdogan and Tunisian President Beji Caid Essebsi, was asked about Sergey Chemezov's remarks in an interview with a Russian newspaper that the deal between the two countries, standing at $2.5 billion, was now concluded.