An attempt to evacuate people from the embattled Ukrainian city of Mariupol is underway. Over the weekend more than 100 civilians were ferried to safety from the besieged Azovstal steel plant, some seeing sunight for the first time in weeks or even months. The plant came under fire again Saturday night, according to Ukrainian forces. Meanwhile, two explosions were reported in Russia's Belgorod region overnight, just a few hours after a large fire broke out at military installation in the area. Russia has accused Ukraine of cross-border attacks on fuel depots and military facilities. Today's coverage begins with CNN's Nick Paton Walsh.

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