New Delhi, May 28 -- Top Russian security official Dmitry Medvedev responded to former US President Donald Trump's criticism of President Vladimir Putin by warning that the only truly serious concern was the potential outbreak of World War Three.

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"Regarding Trump's words about Putin "playing with fire" and "really bad things" happening to Russia. I only know of one REALLY BAD thing - WWIII. I hope Trump understands this!" Medvedev wrote in English on the social media platform X.

Trump issued a warning via Truth Social, claiming that Russian President Vladimir Putin is "playing with fire" and that "really bad things" would have already ...