US hits Russia's largest bank, energy sector with sanctions

The United States hit Russia's top bank and leading energy and technology companies with sanctions Friday, to punish Moscow for supporting separatist rebels in Ukraine.

In the latest sanctions, Washington slapped tight controls on financing for Sberbank, pipeline giant Transneft, energy firms Lukoil, Gazprom, Gazpromneft and Surgutneftgas and state technology group Rostec.