Russian President Vladimir Putin questioned the United States-brokered proposal for a ceasefire in the Ukraine war on Thursday, setting forth tough conditions and demanding concessions from Kyiv despite saying he supported a truce in theory.

Russian President Vladimir Putin said he agreed with the idea of a ceasefire in Ukraine, but that "questions" remained about the nature of a truce as he set out a number of tough conditions. The Russian president was responding to a plan for a 30-day ceasefire,