Ukrainian President Volodymyr Zelenskyy has accused Russian troops of disrupting the evacuation of residents through so-called "humanitarian corridors."

Zelenskyy released a video on Saturday, in which he said only about 7,000 people had evacuated from four cities through the corridors on Friday.

The Ukrainian government earlier said about 35,000 people escaped on Wednesday, and some 40,000 people on Thursday.

Zelenskyy referred to the eastern city of Mariupol, where Russia's defense ministry says it has set up an evacuation route.

The president said, "Mariupol remains blocked by the enemy. Russian troops did not let our aid into the city and continue to torture our people, our Mariupol residents."

He vowed to keep trying to send food, water and medicine for the city.