Former Russian acting Prime Minister, Yegor Gaidar's health is improving after it was confirmed that he had been poisoned, but it's still unclear when he's going to be discharged.

Gaidar collapsed and fell ill almost a week ago, while promoting his book in Ireland.

Doctors who've been treating him in Moscow have ruled out the possibility of food poisoning.

Mr Natarov say they're waiting for the results of a medical examination from Dublin.

Meanwhile one of Gaidar's colleagues, Irina Hakamada, does not see a clear link between Gaidar's poisoning and the case of the former Russian security service officer Aleksandr Litvinenko, who died in London last month although she's sceptical about the information released inside Russia on these incidents and is waiting for news from the UK.