Ukraine fires drones inside southern Russia following NATO granting go-ahead.

Secretary-General Jens Stoltenberg said, “If (Ukraine) cannot attack military targets on Russian territory then it ties one hand of the Ukrainians on their back.”

The German chancellor says the revenues from frozen Russian assets should be used for weapons purchases for Ukraine.

Russia has refuted a US claim that its forces in Ukraine had breached an international prohibition on chemical weapons by employing banned substances such as a prohibited choking agent.

Ukraine carries out airstrikes on oil facilities in western Russia using attack drones.

The Western-backed President Volodymyr Zelensky made the remark in a PBS interview published on Tuesday.

The German chancellor has hoped for cooperation between Berlin and Beijing towards a "just peace" in Ukraine.

UK’s former armed forces minister James Heappey has suggested that Britain should consider sending troops to Ukraine to give training and other support to Ukrainian forces in the war with Russia - though away from the frontline.

Russia has launched a massive aerial attack on Ukrainian power facilities across five regions.

The Kremlin spokesman told reporters NATO was already involved in the conflict surrounding Ukraine.