-- Doctors treating former Russian PM Yegor Gaidar, who is gravely ill, believe he was poisoned, AP reports aide saying.

Russia ex-PM 'poisoning' probe

Irish police have launched an investigation into the suspected poisoning of former Russian Prime Minister Yegor Gaidar, architect of Russia's market reforms.

Gaidar's illness comes days after the death of former KGB spy Alexander Litvinenko from suspected radiation poisoning.

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