Serbias PM Aleksandar Vucic has been chased away by stone-throwing protesters from a ceremony marking the 20th anniversary of the Srebrenica massacre .\r
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The Serbian prime minister has fled a Srebrenica memorial ceremony after he was attacked by angry crowds. Aleksandar Vucic laid flowers at a monument of .\r
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From: BBC News NewsTV5 Serbias PM Aleksandar Vucic has been chased away by stone-throwing protesters from a ceremony marking the 20th anniversary .\r
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A crowd throwing bottles and stones chased Serbias prime minister from a ceremony in Bosnia marking the 20th anniversary of the Srebrenica massacre, .