U.S. Treasury Secretary Says G7 Unified on Sanctions Against Russia

Clashes like these in Ukrainian cities are an almost regular occurrence since Russia's annexation of Crimea last month Tensions rachet another notch as Russia puts the squeeze on Ukraine over possible gas supply cuts. The crisis once again tops the agenda of the world's leading rich nations. After meetings this week, US Treasury Secretary Jacob Lew warns Russia that the Group of Seven developed nations will support further sanctions if necessary.

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