The Ukrainian city of Mariupol has no water, heat or electricity and is running out of food, its mayor said on Friday, as forces battling a Russian onslaught warned they needed reinforcements to help avoid losing control of the strategic port city.
Mayor Vadym Boychenko appealed for military assistance and for a humanitarian corridor to be created to evacuate some of the city's 400,000 residents after five days of bombardment by encircling Russian troops.
