The Ukrainian military is reporting significant fighting northwest of the nation's capital as Russian forces apparently try to advance on Kyiv from the north.
The military said Friday morning a bridge across a river had been destroyed in the area of Ivankiv, about 60 km (40 miles) northwest of Kyiv.
"The hardest day will be today. The enemy's plan is to break through with tank columns from the side of Ivankiv and Chernihiv to Kyiv. Russian tanks burn perfectly when hit by our ATGMs (anti-tank guided missiles)," Interior Ministry adviser Anton Gerashchenko said on Telegram.
Russia's invasion of Ukraine began early Thursday with a series of missile strikes, many on key government and military installations, quickly followed by a three-pronged ground assault.
Ukrainian and US officials said Russian forces were attacking from the east toward Kharkiv, Ukraine's second-largest city; from the southern region of Crimea, which Russia annexed in 2014; and from Belarus to the north.
