The European Commission said on Monday it had asked Russia and Belarus for an urgent explanation of the reasons for halting the flow of oil in a pipeline from Russia to Poland and other European Union member states, REPORTED REUTERS. "We have contacted the Russian and Belarussian authorities and demanded an urgent and detailed explanation for this interruption," a spokesman for EU Energy Commissioner Andris Piebalgs told a news conference. He said there was no immediate risk to oil supplies to the EU but the Commission would take precautionary measures. "There is no reason to be alarmed now but we are going to take all necessary measures just in case," spokesman Ferran Tarradellas Espuny said.