Russia announced early Monday that it would declare a cease-fire in Ukrainian cities of Kyiv, Mariupol, Kharkiv, and Sumy from 10 a.m. local time (0700GMT) to ensure evacuations of civilians.

Russia's war on Ukraine has been met with outrage from the international community, with the European Union, UK, and US, among others, imposing a range of economic sanctions on Moscow.

At least 364 civilians have been killed and 759 others injured in Ukraine since Russia launched a war against the Eastern European country on Feb. 24, according to UN figures, with the real toll feared to be higher.

More than 1.5 million people have fled Ukraine to neighboring countries, according to the UN refugee agency.