Relations between Moscow and Kiev have been tense since 2014 when a popular uprising drove a pro-Russian president from power.
"Moscow does not accept unfounded accusations that are not based on evidence and a language of ultimatums," Kremlin spokesman Dmitry Peskov told reporters.
Iran's Supreme Court confirmed the controversial death sentence against a prominent medical doctor, Iran's Attorney General Abbas Jafari Dolatabadi said Monday.
Pakistan allowed the wife and mother of an Indian man convicted of spying to visit him on Monday in Islamabad, eight months after he was sentenced to death by a military court.
An Indian citizen sentenced to death for spying in Pakistan has admitted espionage and filed a mercy petition with the chief of army staff, the Pakistan military said, a statement India dismissed as a farce.
The UN's top court will rule on Thursday on an urgent bid by India to stop Pakistan from carrying out a death sentence on one of its nationals convicted of spying.
The UN's top court will hold an emergency hearing on Monday as India seeks to stop Pakistan from executing an Indian national accused of spying.