Ukraine's acting president has called for an anti-terrorist operation to be relaunched in the east of the country after the body of a local politician from his party was found showing what he said was signs of torture. Ukraine's security forces had largely suspended what was a fairly limited operation to respond to the takeover of an eastern town by pro-Russian separatists after reaching an accord with Moscow last week to try to defuse the crisis. Oleksandr Turchynov's call for action could complicate the task of European mediators.