and every second civilian building is damaged or destroyed. there isn't much left, but if ukraine can now hold this ground, it could prove crucial in stopping russian forces from encircling the capital. in ukraine's east, the city of kharkiv, another much wanted prize for the invading force has reported a noticeable increase in russian munitions fired from afar. intelligence assessments say that's happening more because fighting up close isn't going russia's way. but still, no city in ukraine has been bombarded like mariupol. there is only daily torment for the hundreds of thousands still under siege there. >> each day mariupol is destroyed more and more until now in our estimation about 90% of our infrastructure is damaged and destroyed. the city is under continuous bombing from 50 bombs to 100 bombs, russian aircraft drops