Russia accused the Ukrainian government of failing to rein in extremists as escalating tensions threaten to undermine a diplomatic accord reached last week and stoke calls in the U.S. for economic sanctions.
Bloomberg: Russia says Ukraine failing to halt extremists seeking civil war
Pro-Russia militants guard a barricade outside a regional police building seized by armed separatists in Slovyansk on April 13, 2014. Journalist Irma Krat is being held there by the group and interrogated after being taken captive on April 20.
