A bomb attack in Crimea has reportedly killed a former Ukrainian submarine commander who defected to Russia in 2014 when Moscow annexed the peninsula.

A senior Russian military officer was killed in a targeted bombing in annexed Crimea, Kremlin-installed officials and the Federal Security Service (FSB) said Thursday.

Captain 1st Rank Robert Shageyev was killed in an explosion in Sevastopol. He had served as deputy commander of the 4th Separate Submarine Brigade of the Russian Black Sea Fleet,…