ISLAMABAD, Pakistan (CNN) -- The man linked by authorities to nearly every al Qaeda terrorist attack in the last 10 years -- including the September 11, 2001 attacks -- was among three suspected al Qaeda operatives arrested Saturday in Pakistan, coalition intelligence forces confirmed to CNN.

Pakistani intelligence sources told CNN that they had been closing in on Khalid Shaikh Mohammed for several days, before the Pakistani security forces and FBI agents arrested him in a raid on a house in Rawalpindi, Pakistan, about 9 miles (15 km) from Islamabad.[...]