The first freely elected president, who was chosen after the country's Orange Revolution, says his security forces have found the laboratory that made the poison used in an attempt on his life last year. He didn't give details.
The disclosure should ease Ukraine's troubled relations with Russia, the Times of London reported.
Yushchenko was badly disfigured by the dioxin, which is suspected to have been served with his dinner. The president warned an investigation will bring those responsible to justice.