ASSOCIATED PRESS
A man walks past the remains of a Russian military vehicles in Bucha, close to the capital Kyiv, Ukraine, Tuesday, March 1. Russia on Tuesday stepped up shelling of Kharkiv, Ukraine's second-largest city, pounding civilian targets there. Casualties mounted and reports emerged that more than 70 Ukrainian soldiers were killed after Russian artillery recently hit a military base in Okhtyrka, a city between Kharkiv and Kyiv, the capital.