KYIV, Ukraine—Russia and Ukraine prepared to hold cease-fire talks in Turkey to try to end more than a month of war while intense fighting continued, with Ukrainian forces pressing to retake territory north of the capital Kyiv after Russian forces fired missiles at several Ukrainian cities overnight.

Russian negotiators were due to arrive in Istanbul late on Monday, followed by a Ukrainian delegation during the night, for cease-fire talks scheduled for Tuesday morning. Ukrainian President Volodymyr Zelensky over the weekend outlined the conditions under which Ukraine might accept neutral status as part of a peace settlement with Russia, saying his country could hold a referendum on neutrality, but only after Russian occupation forces leave Ukraine’s territory.