Local official says Russian troops 'started leveling everything to the ground' before capturing Kreminna; Zelensky: 'We'll defend ourselves' no matter the size of invasion force

Russian forces take small city of 18,000 overnight Sunday-Monday after three days of fighting, bringing invaders a step closer to Kramatorsk, capital of Ukrainian-controlled Donbas

'We can now confirm that Russian troops have begun the battle for the Donbas,' Zelensky says. 'No matter how many Russian soldiers are brought here, we will fight'

Corpses 'carpeted through the streets,' Boychenko says, accusing Russia of blocking humanitarian convoys for weeks and bringing in 'mobile crematoriums'

'Ukraine can undoubtedly defeat the Russian occupation force,' a senior Zelensky adviser tells Times of Israel -- but Western arms are the key

State railway company says residents of Donbas can board trains at other stations after at least 52 killed in Kramatorsk; deputy PM: 10 evacuation corridors planned for Saturday