MOSCOW, December 19. /TASS/. Russian President Vladimir Putin said on Monday Moscow must know for sure who was behind the assassination of Russian Ambassador to Turkey Andrei Karlov.

MOSCOW, December 19. /TASS/.

TOKYO, December 16. /TASS/.

TOKYO, December 16. /TASS/. Russian President Vladimir Putin has invited Japanese investors to cooperate with Russia more actively.

NAGATO, Japan December 15. /TASS/. Russian President Vladimir Putin and Japanese Prime Minister Sinzho Abe, who held talks earlier on Thursday, have exchanged memorable gifts.

NAGATO /Japan/, December 15. /TASS/.

NAGATO /Japan/, December 15. /TASS/.

NAGATO /Japan/, December 15. /TASS/.

NAGATO /Japan/, December 15. /TASS/.

NAGATO/Japan/, December 15. /TASS/.