WASHINGTON — Secretary of State Hillary Rodham Clinton says the United States played no role in the killing of an Iranian nuclear scientist and says America is looking for an international understanding with Iran that ends its uranium enrichment program.
Clinton categorically denied any U.S. involvement in Mostafa Ahmadi Roshan's death.
Reports said two assailants on a motorcycle attached a magnetic bomb to Roshan's car, killing him and his driver Wednesday. Roshan was a chemistry expert and director of the Natanz uranium enrichment facility in central Iran.
The bombing, which Iranian officials blamed on Israel and said bore all the hallmarks of assassinations of other nuclear scientists in the past years, came as Washington sought to persuade a skeptical China to help efforts to toughen sanctions against Iran.
Iran has blamed Israeli, British, and U.S. intelligence for such attacks in the past, which it said were aimed at assassinating key people working on Iran's nuclear programme. Both Israel and the United States have rejected the claims.
Clinton also called recent Iranian threats to close off the Gulf "provocative and dangerous."
She said the United States remains committed to keeping the international waterway open. She called it "part of the lifeline that keeps oil and gas moving around the world."