Civilians trapped as Ukraine clashes escalate

Hospitals struggle to cope with surge in casualties, as country's president promises to open humanitarian corridors. Al Jazeera's Neave Barker reports from Mykolaivka. Subscribe to our channel http://bit.ly/AJSubscribe Follow us on Twitter https://twitter.com/AJEnglish Find us on Facebook https://www.facebook.com/aljazeera Check our website: http://www.aljazeera.com/