Russia poses significant threat to Kyiv through their strike capability even though Ukrainian forces continue localised counter attacks to the north west of the city, British military intelligence said on Tuesday.

Russian forces have maintained their offensive on Mariupol with continuous heavy shelling of the city, the Ministry of Defence said in a statement. "However the centre of the city remains under Ukrainian control."

Ukraine retakes Kyiv suburb, as talks resume under shadow

Elsewhere, Russian forces are maintaining blocking positions while attempting to reorganise and reset their forces, it added.