Nasar was reportedly captured in the Pakistani city of Quetta in late October 2005, although exactly where and when is disputed. He was handed over into American custody a month or so after his capture; however, he was not among the 14 high-profile al-Qaeda suspects transferred to the Guantanamo Bay detention camp in late 2006, and there were persistent reports that he was one of the ghost prisoners held in secret detention at the U.S. Navy's Naval Support Facility (NSF) on Diego Garcia.