cnn ben wederman revisits the day that ukraine will never forget. >> reporter: at 10:30 in the morning, friday, as many as 4,000 people were here at the kramatorsk rail way station waiting to be evacuated when a large blast overhead rained down thousands of pieces of shrapnel on the crowd below, at least 52 people were killed. you can still see the blood all over the ground. as many as 100 people wounded, all the injured have been evacuated out of this city to the city of dnipro and the capitol, kyiv, because, of course, there is a profound fear that there is going to be a massive russian assault on the eastern ukraine. here, we can see, here's a shoe that's been ripped apart by shrapnel. there is just blood everywhere. the authorities in this part of the ukraine have urged all civilians, especially women, children and the elderly to leave as quickly as possible because of fears of that russian assault. this is a city where just to the east of here have been intensive russian bombardments on ukrainian positions. so that evacuation continues. prior to the blast on friday, they were deal