WASHINGTON (AP) — Two members of the Senate Foreign Relations Committee called Sunday for beefing up western sanctions against Russia to include its petrochemical and banking industries and warned that Moscow thus far has ignored United States and European efforts to persuade it to back off its confrontation with Ukraine. President Barack Obama has said his administration is prepared to take further action against Russia if diplomatic efforts to destabilize the conflict fail. Corker, who plans to be in the region in May, said unless the Russians immediately begin moving the 40,000 troops on the border which are intimidating people in Ukraine, unless they begin immediately moving them away, I really do believe we should be sanctioning some of the companies in the energy sector, Gazprom and others. Geoffrey Pyatt, the U.S.