TEHRAN, Feb 13 - NATO Secretary-General Jens Stoltenberg says the alliance is studying options to deal with what it insists are Russian violations of a key missile treaty but that it wants to avoid sparking any arms race .
TEHRAN, March 2 - The Kremlin strongly rejectede the allegations that Russia has been violating any arms control agreements, stressing that Moscow does not seek to be part of an arms race .