A tanker carrying Russian oil was hit on Thursday by an unmanned marine vehicle in the Black Sea near Istanbul, Turkish authorities said. The Altura crude oil tanker, which is sanctioned by the EU and the UK, was hit by what Turkey believes is an unmanned vehicle, Turkish Transport and Infrastructure Minister Abdulkadir Uraloglu said. The tanker, flying the flag of Sierra Leone and operated by a Turkish firm, had loaded crude oil from the Russian Black Sea port of Novorossiysk, tanker-tracking data on MarineTraffic shows. The Altura was fully laden…