Moscow/Kiev, July 16 -- Russia on Tuesday rejected U.S. President Donald Trump's 50-day ultimatum to agree to an Ukraine ceasefire, dismissing the threat of "severe tariffs" as unacceptable.



Russian Deputy Foreign Minister Sergey Ryabkov emphasized that Moscow favors a diplomatic resolution to the Ukraine conflict and is ready to negotiate.



"However, if this is not met with a proper response, if we cannot reach our set goals through diplomacy, then the special military operation will go on," he continued.



He said Moscow's position is unshakable. "We expect Washington and NATO to take this seriously."



Trump on Tuesday denied earlier allegations that he encouraged Kiev to strike deep into Russian territory, saying that he isn'...