NKorea has at least one other uranium enrichment site: US
North Korea has "at least one other" uranium enrichment site than that disclosed to US experts last month, US State Department spokesman Philip Crowley said Tuesday.
"We're very conscious of the fact that, in the recent revelations to American delegations, what they saw did not come out of thin air. It certainly reflects work being done at at least one other site," Crowley told reporters.
"This remains a significant area of concern," he said, adding he did not want to get into intelligence matters.
In Seoul, South Korea's foreign minister also voiced suspicion on Tuesday that North Korea may have secret uranium enrichment facilities in addition to the one it disclosed last month.
The North revealed an apparently operational uranium enrichment plant at its Yongbyon atomic complex to visiting US experts on November 12, shortly before it sparked a security crisis with an artillery attack on a South Korean island.
Pyongyang says its new operation is intended to fuel a nuclear power plant, but senior US and other officials fear it could easily be reconfigured to produce weapons-grade uranium to augment the country's plutonium stockpile.
Diplomats are touring the region to discuss a response both to the attack and the potential new nuclear threat.
The New York Times, citing anonymous officials in President Barack Obama's administration, reported Tuesday that North Korea's new facility to enrich uranium is "significantly more advanced" than work done by Iran.
© 2010 AFP