The de facto mayor of the Ukrainian city of Slaviansk has said mediators from the Organisation for Security and Cooperation in Europe who are seeking the release of a group of detained observers had arrived in the city.
The self-proclaimed mayor, Vyacheslav Ponomaryov, told reporters he was heading into talks with the mediators.
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The signs were encouraging to commuters going about the transport network the day after a terror attack in Westminster.
Faith leaders from across London say religious communities will "stand together" in the wake of the Westminster terror attack.
Pc Keith Palmer was among the three people killed yesterday in the Westminster terror attack.