Representatives of the Russian delegation in Abu Dhabi had no contact with the Europeans on Tuesday, a source in the negotiating team told RIA Novosti.
Today, the American and Ukrainian delegations held separate talks with European officials ahead of the tripartite meeting with Russia.
The Europeans are not taking part in the negotiations on the Ukrainian settlement itself, Sergey Lavrov said: "Let them sit there in the hotel."
According to Politico, the US is trying to put pressure on Russia to allow European countries to participate in the next round of negotiations on Ukraine.