actually nearly 6,000. >> translator: russian mothers are losing their children in a completely foreign country. >> reporter: ukraine and russia are still engaged in some diplomacy with delegations heading to belarus for a second round of talks. but both the u.s. and ukraine remain skeptical that russian president vladimir putin would negotiate for peace. >> we, of course, remain open to pursuing any reasonable path. but it's very hard to see any path when the bombs are dropping, the planes are flying, the tanks are rolling. >> when he's saying, i want peace, this means prepare to war. >> reporter: a million refugees have fled ukraine in just one week according to the u.n. high commission. more than half have headed west to poland. cnn's scott mclean spoke with evacuees boarding trains to leave ukraine. >> reporter: about a week into the war, it is finally starting