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MOSCOW (Reuters) - Russia delivered another battery of Russian S-400 missile defenses on Tuesday, Interfax news agency cited President Vladimir Putin as saying.

“By the way, another delivery was made this morning,” Putin told Turkish President Tayyip Erdogan, who was on a visit to Russia.

Turkey’s Defence Ministry said that the delivery of a second battery of S-400 defense system had started as of Tuesday and that it would take around one month.