Radioactive element found in Russian ex-spy

Traces of radioactive polonium have been found in the blood of the deceased Russian ex-spy Alexander Litvinenko, the UK's Health Protection Agency (HPA) said on Friday. His urine also tested positive for radiation.

The agency is now assessing the health risks posed to members of the public who may have come into contact with Litvinenko, including family members and hospital staff who cared for him during the weeks he spent in hospital. They are also trying to decide the safest way for pathologists to conduct an autopsy of his body, and indeed whether such a procedure is safe enough to be performed at all.

Litvinenko, aged 43, died on Thursday of heart failure after claiming he had been poisoned in a London restaurant. He was formerly an agent of the Soviet, then the Russian, security service. He specialised in investigating organised crime and its involvement with corrupt officials.