U.S. President Barack Obama and German Chancellor Angela Merkel warned Russia on Friday it will face additional sanctions against key sectors of its economy if Moscow disrupts Ukraine's plan to hold elections on May 25.
The two leaders linked the threat to the election when they addressed a joint news conference in the White House Rose Garden after Oval Office talks dominated by the situation in Ukraine.
Obama and Merkel said they were united in vowing to move to the tougher sanctions but made clear there were still negotiations to determine how to structure them should they be necessary.
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