Russian’s illness ‘unlikely to be caused by thallium sulphate’
Dr Amit Nathwani, the consultant caring for Mr Litvinenko at University College Hospital in London, said further tests would be conducted to establish the cause of his condition.
It is yet another twist in the extraordinary Cold War style saga and comes after a leading toxicologist claimed that Mr Litvinenko could have been poisoned with “radioactive thallium”.
