Turkish President Recep Tayyip Erdogan, right, shakes hands with Ukrainian President Volodymyr Zelenskyy at the end of a joint news conference following their meeting in Istanbul. AP
Turkish President Recep Tayyip Erdogan, right, shakes hands with Ukrainian President Volodymyr Zelenskyy at the end of a joint news conference following their meeting in Istanbul. AP

Turkey offers to mediate Ukraine-Russia peace summit