Kyiv says carried out missile attack on target in Crimean port of Sevastopol during 'a meeting of the Russian navy's leadership'

Russian defense ministry reports one serviceman missing in missile attack on Sevastopol after initially saying he was killed

Authorities in Moscow-controlled region say site in Sevastopol attacked by UAV; no injuries reported

Authorities say another 35 still missing at site in Dnipro where weekend attack also left 75 injured; battle rages over control of small, strategic town of Soledar in east

No reports of victims as Sevastopol governor blames Ukrainian forces for latest attack on Russian-annexed peninsula

Russia says device appears homemade; Kyiv said to deny carrying out attack; incident leads to cancellation of Russia's Navy Day celebrations in Sevastopol on the Crimean Peninsula

Satellite photos show dolphin pens placed at entrance to Sevastopol harbor; marine mammals can be trained for anti-diver operations