Ukraine traces dioxin used in poisoning

KIEV, Ukraine, Sept. 9 (UPI) -- Ukraine's prosecutor general says dioxin used to poison President Viktor Yushchenko before his election was from Russia, Britain or the United States.

Oleksandr Medvedko said his office has determined when and how Yushchenko was given the dioxin, the Novosti news agency reported.

"The only thing left is to prove who committed the crime. We are working on that jointly with the Security Service of Ukraine," he said.

Yushchenko became ill during his 2004 campaign after a dinner with Ihor Smeshko, who headed the Security Service at the time, and his deputy. Doctors at first believed he had food poisoning, but a clinic in Vienna where he was treated eventually confirmed he had ingested dioxin.