https://www.svoboda.org/a/1885663.html -Litvinenko was due to meet with Igor Ponomarev, Russia's representative to the International Maritime Organization. But he died suddenly of a heart attack on October 30, 2006. "Yes, Igor Ponomarev died, and he was probably killed. He died while at the London Opera. He said that he was thirsty, drank three bottles of water in a row, and then suddenly died. English doctors say that such thirst is a typical symptom of radioactive poisoning. It was impossible to perform an autopsy, since the Russian embassy immediately took Ponomarev's body, it was urgently delivered to Russia and cremated."