And turning to the deepening crisis in Ukraine,.
Pro-Russian militants have retaken control of southeastern port city of Mariupol, just hours after being ousted by Ukrainian security forces.
Ukraine's acting prosecutor general told said Wednesday that the government would use the full force of the law to crack down on separatist groups.
Pro-Russian protestors have seized numerous official government in dozens of eastern towns as the country slides further towards war.
Ukraine's acting Interior Minister, Arsen Avakov, said more than 30 separatists were killed a day before in fighting around the city of Slanviansk, which has become a stronghold for the pro-Russian groups.
Meanwhile, Russia's Foreign Minister Sergei Lavrov has criticized Kiev for pushing forward with presidential elections scheduled for May 25th, despite the military being deployed against part of the population.