Pakistan says it has closed investigations into the proliferation of weapons technology by its nuclear scientist A.Q. Khan, who confessed he illegally sold nuclear secrets to Libya, North Korea and Iran.
A Foreign Ministry spokeswoman says the closure came with last week's release of Mohammed Farooq, a senior aide to Khan who worked at Pakistan's top nuclear weapons facility, Khan Research Laboratories. He was the last man held in connection with the scandal and was freed after two years in detention.
The spokeswoman told reporters Pakistan has shared information from its investigation with the International Atomic Energy Agency and other countries, including the United States. She says any further questions should be forwarded to the Pakistani government.
Khan confessed in February, 2004, but was pardoned by President Pervez Musharraf because of his role in helping Pakistan develop its nuclear bomb. He has since been confined to his home in Islamabad under tight security.