Poisoned Russian former spy Alexander Litvinenko has been buried in London following a private Muslim ceremony today.
Mr Litvinenko, a critic of Russian President Vladimir Putin, died in a London hospital on November 23rd from radioactive poisoning. He had converted to Islam a few days before his death.
He accused the Russian leader of involvement in his death - an accusation that Russia denies.
Today's memorial service was held in a private function room in Lauderdale House, just across from the cemetery on the other side of Waterlow Park.
It featured tributes by some of Mr Litvinenko's closest friends interspersed with songs, in English and Russian sung by a plain choir, one of the former spy's favourite variety of music.
One friend said that after Mr Litvinenko discovered he was poisoned, he tried to live the rest of his life in the few short days he had left.
Mr Litvinenko's urine was found to contain massive doses of deadly polonium 210, traces of which have since been found in several locations in central London.
Britain's embassy in Moscow also said yesterday small traces of radiation had been found on its premises, but that they were too small to be harmful and declined to say if the radiation was polonium 210.
British police said they were treating the death as murder and have sent a team to Moscow to question witnesses who met Mr Litvinenko in London.
They are expected to question businessman and former KGB spy Andrei Lugovoy who met Mr Litvinenko in London on November 1st - the day he fell terminally ill.
While admitting to meeting Mr Litvinenko on that day, Mr Lugovoy - who has been checked for radiation contamination - has denied any involvement in his death.
British police and investigators from Russian Prosecutor-General Yuri Chaika's office on Wednesday questioned Dmitry Kovtun who was also at the November 1st meeting.
Mario Scaramella, an Italian contact of Mr Litvinenko who met him separately in London the same day, said on Wednesday he was well but awaiting test results.
Meanwhile, Dmitry Kovtun, a contact of Mr Litvinenko, is in satisfactory health and media reports he is in critical condition are wrong, a lawyer said tonight.
Russia's Interfax news agency reported earlier that Mr Kovtun, who met Mr Litvinenko in London on the day he fell ill, was in a coma from radiation poisoning.
"I just 15 minutes ago spoke to his [Kovtun's] representative, who had spoken directly to him and he denied that information," said Andrei Romashov, a lawyer for Andrei Lugovoy, another witness in the Litvinenko case.
"His health right at this minute is no different from the state of his health when he was questioned by Russian and British investigators [today]," Mr Romashov told Reuters.
Mr Kovtun met Mr Litvinenko at the Pine Bar in London's Millennium Hotel on November 1st.
Mr Litvinenko was admitted to hospital that day and died from radiation poisoning three weeks later. Former spy Andrei Lugovoy, who was at the same meeting, is also in hospital.