Newspaper columnist and poet Fatima Bhutto, the granddaughter of late Pakistani premier Zulfiqar Ali Bhutto and niece of Benazir Bhutto, said her aunt's return from exile would plunge the country further into turmoil.
Fatima is the daughter of former Prime Minister Benazir's late brother Murtaza. Murtaza Bhutto was killed by police in Karachi in 1996 amid murky circumstances that led to the collapse of her second term in government.
Fatima accused the Benazir of protecting herself on her return to Pakistan with an armoured truck, while bussing in hundreds of thousands of supporters despite warnings of an attack.
The suicide and grenade blasts happened hours after Benazir flew into Karachi from Dubai. Benazir has blamed extremists, possibly with links to rogue or former intelligence agents, for the attack.
