Attack on Bhutto convoy kills 120

More than 120 people have been killed after two bombs exploded among crowds in Karachi celebrating the return of the former Pakistani PM Benazir Bhutto.

Ms Bhutto, who was travelling through crowded streets from the city's airport to a rally marking her homecoming after eight years in exile, was not hurt.

The truck carrying her had its windows shattered and a door blown off.

The attacks on the motorcade happened despite a heavy security presence following threats from militant groups.

Several Islamist groups, including pro-Taleban militants, had said they would attack Ms Bhutto on her return after she promised to confront those operating in the northern tribal areas bordering Afghanistan.

Her husband, Asif Ali Zardari, said members of the government and intelligence agencies who were going to lose power were behind the attack.