Ukraine's Black Sea port city of Mykolayiv issued an air raid warning on Friday after the authorities reported fighting around the city as Russian forces sought to advance.
Earlier on Friday, the Ukrainian authorities said the Russian advance on the ship-building hub had been halted after Regional Governor Vitaliy Kim reported Russian troops entering the city.
(Reporting by Natalia Zinets, Writing by Alessandra Prentice, Editing by Timothy Heritage)
