Kazakhstan on Saturday confirmed the deaths of two of its citizens in an anti-terrorism operation in Russia that Moscow claims prevented an attack against a synagogue in the Russian capital. Russia’s FSB security service on Thursday confirmed an operation against a suspected branch of the Islamic State (IS) militant group had taken place in the Kaluga region southwest of Moscow. Russian media had claimed that two suspects of Kazakh origin who arrived in Russia in February were killed in the operation. “The Kazakh citizenship and arrival in Russia by these two people is confirmed,” said the Kaz…