UK intelligence says Russian advance on Kyiv made little progress

Russia's advance on Kyiv has made little progress in the past 24 hours due to logistical difficulties and the army has increased its use of artillery north of the capital, a British military intelligence update said.

"Russia has failed to gain control of the airspace over Ukraine prompting a shift to night operations in an attempt to reduce their losses," the British defence ministry said in a military intelligence update.

Meanwhile, Britain's Deputy Prime Minister Dominic Raab, said on Tuesday that anyone engaging in war crimes in Ukraine would be held accountable.

"This is turning into a much much more perilous misadventure for [President Vladimir] Putin than I think he realised," Raab told Sky News.

Raab added that Britain would not seek to enforce a no-fly zone over Ukraine.