Six people have been killed and dozens of people wounded in Russian missile attacks targeting the Ukrainian capital Kyiv and second biggest city Kharkiv, according to officials.
Residential buildings were hit early on Tuesday in the north-eastern city of Kharkiv, leaving five people dead and another 42 injured, including two women aged 40 and 56.
The city mayor said part of a block of flats was destroyed and rescue workers were combing the rubble for survivors.
The Wall