Osama bin Laden spent nine years on the run in Pakistan after the Sept. 11 attacks, during which time he moved among five safe houses and fathered four children, at least two of whom were born in a government hospital, his youngest wife has told Pakistani investigators…

The Sept. 11 attacks caused the Bin Laden family to “scatter,” the report said. She returned to Karachi with her newborn daughter, Safia, where they stayed for about nine months. They changed houses up to seven times under arrangements brokered by “some Pakistani family” and Bin Laden’s elder son, Saad…

Ms. Fateh said she left Karachi in the second half of 2002 for Peshawar, the capital of Khyber Pakhtunkhwa Province, where she was reunited with her husband. The American pursuit of Bin Laden was running high: Qaeda operatives had attacked an Israeli-owned hotel in Kenya and nightclubs in Indonesia, and with C.I.A. intelligence resources not yet diverted to Iraq, the search was firmly focused on the Pakistan-Afghanistan border area.

Bin Laden, according to his wife, took his family deep into rural mountain areas of northwest Pakistan — but not, notably, into the tribal belt where much Western attention was focused. First they stayed in the Shangla district in Swat, a picturesque area about 80 miles northwest of the capital, Islamabad, where they stayed in two different houses for eight to nine months.