Ukraine's Deputy Prime Minister Iryna Vereshchuk announced Saturday that 10 humanitarian corridors have been agreed on with the Russians.
They include a corridor from the besieged port city of Mariupol, several in the Kyiv region and several in the Luhansk region.
She also announced plans to deliver humanitarian aid to the city of Kherson, which is currently under control of the Russian forces.
In his nightly video address, Ukrainian President Volodymyr Zelenskyy said Russian forces are blockading the largest cities with the goal of creating such miserable conditions that Ukrainians will cooperate. He said the Russians are preventing supplies from reaching surrounded cities in central and southeastern Ukraine.
Satellite images on Friday from Maxar Technologies showed a long line of cars leaving Mariupol as people tried to evacuate. Zelenskyy said more than 9,000 people were able to leave the city in the past day.
This is a live update. Click here for complete coverage of the crisis in Ukraine.