Eastern Ukraine, city of Severodonetsk is now "largely" under Russian control after fierce fighting, while its twin city of Lysychansk is suffering enormous destruction, the region's governor said on Wednesday.

Moscow's forces "control a large part of Severodonetsk. The industrial zone is still ours, there are no Russians there. The fighting is only going on in the streets inside the city", Sergei Gaidai, governor of the Lugansk region, said on Telegram.