this is bbc news. i'm martine croxall. the headlines at 10pm. donald trump calls vladimir putin "very smart" after the russian leader rules out a tit—for—tat response to president obama's expulsion of diplomats in a row over claims of online espionage. meanwhile, the republican senator john mccain calls russia's alleged hacking an "act of war" and says the us must make sure russia pays the price. russia asks the un security council to consider a new resolution to endorse the ceasefire in syria that came into force last night. a post—mortem examination into the cause of george michael's death has proved "inconclusive" — further tests will now be carried out. drivers are told to take care in fog and freezing conditions, as a coach overturns on the mao in oxfordshire injuring seventeen people. good evening and welcome to bbc news.