Ukraine’s military has published footage of what it says is a street gunbattle between Ukrainian defenders in the north-eastern city of Sumy and Russian attackers.
Sumy – with the population of more than 260,000 people – is a regional capital that lies less than 30km (19 miles) from the Russian border.
The head of the local administration, Dmytro Zhyvytsky, said a large Russian military convoy was heading west past Sumy towards the capital Kyiv.
He also said that the nearby town of Konotop was now encircled.
Some have posted the military’s video on Twitter:
