Russia launched waves of drones and ballistic missiles at multiple targets across a broad swath of Ukraine overnight, killing at least four people in the capital of Kyiv and wounding around 40 across the country. Read the latest: https://cnn.it/43UuV6X | CNN International

Russia launched a fresh attack on Kyiv early Tuesday after a night of missile and drone strikes that killed six people and wounded at least a dozen, according to Ukrainian authorities. https://cnn.it/4oU2GOU | CNN

The Kremlin is believed to have assembled 70% of the military personnel and weapons on Ukraine's borders that Russia would need for a full-scale invasion, according to two US officials familiar with Washington's latest intelligence estimates. Former CIA Director Leon Panetta reacts. | CNN