Live: Ukrainian troops withdraw from eastern town of Siversk

Ukrainian forces ​have pulled out ⁠of the embattled eastern town of Siversk, Kyiv's ​military said on ‍Tuesday, as Russian troops ​step up a battlefield offensive ​along the front line. Meanwhile, several Ukrainian regions suffered power outages amid frigid winter weather after Russia carried out a massive attack with drones and missiles, killing at least three people. Follow our liveblog for the latest updates.