Kremlin denies role in Boris Nemtsov death
28 February 2015 Last updated at 14:47 GMT
People have gathered in Moscow to pay tribute to opposition leader Boris Nemtsov, who was shot dead on Friday just yards from the Kremlin.
It is not yet clear who was behind the attack but investigators suggested it had been meticulously planned.
Speaking to the BBC World Service, Dmitry Peskov, spokesman for President Vladimir Putin, said allegations that the Kremlin was involved in the killing were total nonsense.