The evacuation of 568 civilians sheltering underneath the Azot chemical plant in Ukraine's Severodonetsk is currently impossible due to shelling and heavy fighting, Reuters reported on Friday, citing the governor of Luhansk region. 

The UN on Friday said the humanitarian situation in eastern Ukraine is "extremely alarming" and continues to deteriorate, and the situation is "particularly worrying in and around Severodonetsk".

"The humanitarian situation across Ukraine -- particularly in the eastern Donbas -- is extremely alarming and continues to deteriorate rapidly," the UN Office for the Coordination of Humanitarian Affairs (UNOCHA) said in a statement.