"As a general matter, our allies share the view with the United States that Russia has not done as much as we would like to see them do to contribute to a de-escalation of that conflict (in Ukraine)," White House Press Secretary Josh Earnest said yesterday.
However, Earnest didn't provide any clear cut information about the probable 'timing or scope' of sanction that the US wants to impose.
"It wouldn't be particularly strategic for us to announce in advance possible timing or scope of a specific sanctions regime that's being contemplated," he said.
The United States has been working in very close coordination with its allies to impose sanctions on Russia for destabilizing actions along its border with Ukraine.
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"We have also taken specific steps to isolate Russia, and there are a variety of measures that indicate those steps have had an impact, a negative impact on the Russian economy," he said.
America has also asked the Russian President Vladimir Putin to coordinate with the Organization for Security and Co-operation in Europe (OSCE) in terms of a border-monitoring mechanism.
"We've also asked the Russians to support a road map for talks under the OSCE-mediated contact group. And we've asked President Putin to use the influence that he has with Russian separatists to encourage them to lay down their weapons and abide by a cease-fire agreement, and allow this contact group to negotiate the kind of settlement that would deescalate the conflict that we've seen in that country," he added.