The Voice of America reported on Saturday that a former official of the International Atomic Energy Agency has said that nuclear substances found in Libya in 2004 were from North Korea.

Olli Heinonen was the deputy director general of the IAEA for five years. He told the VOA that uranium hexafluoride (UF6) used in uranium enrichment in Libya was very likely to have been made by North Korea. Heinonen based his allegations on the machinery being used at the time, North Koreas’ purchases of parts to develop nuclear capabilities, and information provided by Pakistan.

Heinonen also said that a link between North Korea and Syria involving nuclear technology needs to be further investigated, but it is clear that a nuclear reactor in Syria, which Israel destroyed, was highly similar to North Korea’s reactors.

The former deputy director general of the IAEA said there is a good chance that North Korea has uranium enrichment programs in areas other than Yongbyon, a region where the communist nation has a nuclear program. He said IAEA inspectors must inspect those facilities if they visit the North.