内容摘要：Campaigners say governments in Europe and North America need to do more to stop Russian oil and gas from fuelling the war with Ukraine.

Campaigners say governments in Europe and North America need to do more to stop Russian oil and gas from fuelling the war with Ukraine.

He said that each of the 117 drones launched had its own pilot."The most interesting thing - and we can already say this publicly - is that the 'office' of our operation on Russian territory was located right next to the FSB of Russia in one of their regions," the Ukrainian president said.

The FSB is Russia's powerful state security service.Zelensky also said that all the people involved in the operation had been safely "led away" from Russia before the strikes.The SBU estimated the damage to Russia's strategic aviation was worth about $7bn (£5bn), promising to unveil more details soon.

The Ukrainian claims have not been independently verified.Sources in the SBU earlier on Sunday told the BBC in a statement that four Russian airbases - two of which are thousands of miles from Ukraine - were hit:

The SBU sources said that among the hit Russian aircraft were strategic nuclear capable bombers called Tu-95 and Tu-22M3, as well as A-50 early warning warplanes.

They described the whole operation as "extremely complex logistically".More than 30 soldiers were killed in Sunday's attack, according to sources quoted by the Reuters news agency, however that figure has not been confirmed by the authorities.

On Monday the same group, Jama'a Nusrat ul-Islam wa al-Muslimin (JNIM), says it targeted the military in the historic city of Timbuktu.In a statement responding to Sunday's attack, Mali's army said it "reacted vigorously", before "withdrawing" - suggesting a tactical retreat.

"Many men fought, some until their last breath, to defend the Malian nation," the statement added.An unnamed local source told Reuters that JNIM had left many casualties and "cleared the camp".