In an autobiography being published after her assassination, Pakistan opposition leader Benazir Bhutto says she was warned that four suicide bomber squads would try to kill her, one led by Osama bin Laden's 16-year-old son.

The former Pakistan prime minister, who was killed in Rawalpindi in December while campaigning for elections, wrote that Pakistan's President Pervez Musharraf and a "foreign Muslim government" had informed her these squads were planning her murder, according to excerpts of the book, which is to be published on Feb 12.

"I was told by both the Musharraf regime and the foreign Muslim government that four suicide bomber squads would attempt to kill me," Bhutto says in the book, Reconciliation: Islam, Democracy & the West.