(Reuters) - A total of 5,208 people were evacuated from Ukrainian cities through humanitarian corridors on Saturday, a senior official said, fewer than the 7,331 who managed to escape the previous day.

       Kyrylo Tymoshenko, deputy head of the president's office, said in an online post that 4,331 people had left the besieged city of Mariupol.

       (Reporting by David Ljunggren; Editing by Daniel Wallis)