LONDON, April 14 (Xinhua) -- British Prime Minister David Cameron on Monday spoke to German Chancellor Angela Merkel and French President Francois Hollande in separate phone calls to discuss the ongoing situation in Ukraine, a Downing Street spokesperson said Monday.
"They agreed that the Contact Group meeting due to take place on Thursday would be an important opportunity for the Russian government to demonstrate a commitment to dialogue and de-escalation," the spokesperson said in a statement.
The spokesperson added that the three leaders agreed that the current occupation of government buildings in eastern Ukraine is "illegal and dangerous", calling on all parties to do everything they can to de-escalate the situation.
The three leaders noted that European Union (EU) foreign ministers met Monday and agreed that they should look at accelerating work on further possible sanctions, the spokesperson said.
A new wave of unrest has erupted in Ukraine's east over the weekend, when pro-Russia activists seized several government buildings in the cities of Donetsk, Lugansk and Kharkov, demanding a referendum on autonomy and closer ties with Russia.
Russian Foreign Minister Sergei Lavrov said Monday that Moscow is not interested in getting involved in Ukraine's domestic affairs.
Commenting on reports that the United States, the European Union and Ukraine were going to present some evidence about Russia's alleged involvement in the situation in Ukraine during an upcoming meeting scheduled for Thursday, Lavrov said those evidence could be "quasi-facts."