kyiv firing at a building, a camera capturing the moment it nearly comes right at them. in the south, social media images showing russian troops on patrol near the train session. the outmanned and outgunned ukrainians still standing, ready to fight. ukraine's embattled president zelenskyy speaking with reporters today, saying it is important to stop the bombing before sitting down to negotiate. and speaking with president biden today. president biden promising to hold russia accountable. and tonight, the emergency unfolding on ukraine's borders. nearly ly 700,000 refugees now. abc's senior foreign correspondent ian pannell leading us off tonight from kyiv. >> reporter: this is the onslaught ukrainians are facing tonight. a tank firing into a building in a town north of kyiv. not far away, a russian missile