Russia's defence ministry says humanitarian corridors will open at 10:00 Moscow time (07:00GMT) on Saturday from the Ukrainian cities of Mariupol and Volnovakha, reports the BBC.
A "regime of quietness" will be implemented for the civilian population to leave the cities and has been agreed with the Ukrainian authorities, the defence ministry said according to Russian media.
The head of Ukraine's Donetsk region military administration, Pavlo Kirilenko confirmed the temporary ceasefire from 09:00 local time (07:00 GMT) and said that his administration is currently working on the details of the evacuation.
Earlier, Mariupol's mayor Vadym Boichenko called for a humanitarian corridor amid an ongoing blockade and what he has called "ruthless attacks" by Russian troops.