Drone footage shows the extent of destruction in Mariupol, Ukraine

Recent, undated drone footage shows the extent of destruction in Mariupol, Ukraine, following weeks of heavy shelling by Russian forces. Ukrainian leaders have accused Russia of seizing 15 rescue workers and drivers from a humanitarian convoy trying to get desperately needed food and other supplies into the port city. Ukrainian President Volodymyr Zelensky estimated that 100,000 civilians remain in Mariupol, the scene of some of the war’s worst devastation, as Russia presses on with a nearly month-old offensive by bombarding cities and towns.