russian artillery units who are trying to at least partially surround the city. but as that is happening there are civilians caught in the crossfire and many of them trying to evacuate from towns that have been hit with russian strikes. we met one american in the town and he's name is dwight crow. he's trying to help people get out of the town being hit by russian troops his words give you a sense of how everyone is stepping up and helping where they can as the most vulnerable people try to flee. >> suggested doing not even that i'm mostly carrying stretchers, helping civilian and wounded evacuate. there's a lot of in craning incredible ukrainian volunteers leading the charge and putting themselves in harm's way for their countrymen print just try to help out. >> evacuation around kyiv around that city of mariupol. hitting cleared civilian areas. mariupol is a place with about 400,000 people. many of them are now stuck