Traces of lethal Polonium-210 have been detected at a restaurant linked to the investigation of the murder of former Russian agent Alexander Litvinenko, the Health Protection Agency said Friday, according to AP. The agency said «some evidence» of radioactive contamination had been found at the Pescatori Restaurant in London's Mayfair neighborhood, but measures to remedy the problem had been completed and the resaturant had been allowed to reopen. «On the basis of the monitoring results received there is no public health concern,» said the agency, which has taken the lead in monitoring people and places for signs of contamination. Litvinenko, a Kremlin critic who lived in exile in London, died in a London hospital on Nov. 23 after suffering radiation poisoning. In a deathbed statement, he accused Russian President Vladimir Putin of ordering his murder, allegations which the Kremlin dismissed. British police say they are treating his death as murder and have conducted investigations in both London and Moscow. Around a dozen London sites have been tested for traces of the rare element.