12-km-long Russian military convoy moving towards Ukraine's Kharkiv

Satellite images collected and analyzed by Maxar Technologies show an eight-mile-long (12.8 km) military convoy moving south through the eastern Ukraine town of Velkyi Burluk on April 8, Report informs via CNN.

The town sits to the east of Kharkiv, close to Ukraine's border with Russia.

The images show "armored vehicles, trucks with towed artillery and support equipment" making up the convoy, Maxar said.

Ukrainian officials say major fighting is underway in the east of the country, with heavy shelling reported throughout the Donbas region, ahead of what they are warning may be a major Russian offensive. Ukraine's defense intelligence chief on Friday told CNN that Russian troops are regrouping across the border and plan to advance toward Kharkiv. Officials have urged the evacuation of civilians from the region, as Russian forces shift focus to southern and eastern Ukraine.

Earlier in Russia's invasion, a 64-kilometer Russian military convoy, composed of tanks, armored vehicles and towed artillery, sparked dread among defending Ukrainians as it lumbered towards their capital Kyiv in northern Ukraine. But the convoy stalled as it faced tough Ukrainian resistance and challenges in accessing supplies, before dispersing without ever reaching the city.