Businesses were closed down across other cities in the Sindh province, especially Hyderabad, Sukkur, Khairpur and Larkana.

BBC: Pakistan 'extremist' is shot dead

Over 500 buses were reported to have come laden from Miss Bhutto's hometown of Larkana, in northern Sindh.

ECONOMIST: Pakistan's political mess

Bhutto Thursday told CNN that she intends to visit her constituency of Larkana on Saturday amid security fears after last week's bombing.

CNN: Suicide blast kills 24 in Pakistan