Britain's Defense Ministry says Russian air activity remains high over Ukraine's Donbas region with Russian aircraft conducting strikes using both guided and unguided munitions.
SEE ALSO: Live Briefing: Russia Invades UkraineThe ministry said in its daily intelligence bulletin that Russia increased its use of tactical air to support its creeping advance, combining air strikes and massed artillery attacks to bring its firepower to bear as its operational focus has switched to the Donbas.
"The increased use of unguided munitions has led to the widespread destruction of built-up areas in the Donbas and has almost certainly caused substantial collateral damage and civilian casualties," the military intelligence tweeted on June 4.
Moscow has made seizing the whole eastern Donbas region a key objective of its unprovoked invasion after being pushed back from Kyiv.