Her brothers , Murtaza and Shahnawaz , turned to paramilitary action , founding the Al Zulfikar group which trained its members to carry out acts of assassination and sabotage to oust the military government . After Al Zulfikar orchestrated the 1981 Pakistan International Airlines hijacking , the government used this as the pretext for re-arresting Bhutto and her mother in March . Bhutto disapproved of the hijacking , believing that it strengthened Zia 's hand . In July 1981 , Nusrat was released so that she could seek medical treatment for cancer abroad , but Bhutto was not . She was kept for a time in Karachi before being moved to Sukkur prison and then back again to Karachi . During much of this period , she was held in solitary confinement , and experienced a range of health problems , including hair loss , gynaecological issues , and anorexia . In December , she was moved into house arrest , where she would remain for two years . In the United States — a key ally of Zia 's regime — Peter Galbraith helped rally support for Bhutto , including the politicians Claiborne Pell and James Buckley . When Zia visited Washington D.C. in December 1982 , they raised the issue of Bhutto 's imprisonment with him . As international pressure mounted , the Pakistani government agreed to release her , placing her on a flight to Geneva in January 1984
1981 Pakistan International Airlines hijacking
1981 Pakistan International Airlines hijacking
Benazir Bhutto