Russia has once again attacked Ukraine's power supply during the winter cold. Power has been cut off in many parts of the country.
A large wave of attacks has meant that power has had to be turned off in "most regions," the state operator Ukrenergo announced.
The private electricity giant DTEK is warning of outages in Kyiv and the surrounding area, in Odesa and in Dnipro.
Winter nights have been very cold in Ukraine in recent weeks. The temperature has been slightly higher on Saturday night, but during the morning it is still a few degrees below zero in most of the country.
