Ukraine and Russia: What you need to know right now

Fighting stopped residents from evacuating the besieged city of Mariupol for the second day in a row on Sunday, as Russian President Vladimir Putin vowed to press ahead with his invasion and the number of refugees fleeing Ukraine passed 1.5 million.

Fleeing conflict, caught in shelling

Ukrainians fleeing the town of Irpin just outside Kyiv were caught in shelling by Russian forces and forced to...