'Massive' drone attack on Black Sea Fleet - Russia- PublishedUkraine has carried out a "massive" drone attack on the Black Sea Fleet in the Crimean port city of Sevastopol, damaging one warship, Russia says.Without providing evidence, Russia accused British troops of being involved in Saturday's attack - and in blowing up gas pipelines last month.Russia said the ships targeted in Saturday's attack were involved in the internationally-brokered deal to allow grain exports from Ukrainian ports and hours later announced that it was suspending its participation in it.In recent days, Russia has been engaged in what US and Ukrainian officials describe as a disinformation campaign, with unsubstantiated claims that Kyiv is preparing to use a radioactive dirty bomb, or even biological mosquitoes.In recent days, Kyiv has accused Moscow of deliberately delaying the passage of ships, creating a queue of more than 170 vessels."