The Pakistani government says the killing of Hakimullah Mehsud is a US bid to derail planned peace talks. Some lawmakers have demanded the blocking of US supply lines into Afghanistan in retaliation.
"The murder of Hakimullah is the murder of all efforts at peace," said Interior Minister Chaudhry Nisar. "Americans said they support our efforts at peace. Is this support?"
Despite Mehsud's reputation as an uncompromising commander, Pakistan's new government had vowed to try to stop the violence through peace talks and it reacted angrily to his death.
Shah Farman, a spokesman for the government of the northwestern province of Khyber Pakhtunkhwa, said provincial lawmakers would pass a resolution on Monday to cut NATO supply lines into landlocked Afghanistan. A major one passes through the nearby Khyber Pass.
More top news
A senior Labour peer has said rogue peers should be immediately suspended from the House of Lords when scandals break.
Emmerdale star Anthony Quinlan has revealed he split his trousers in front of the rest of the cast and crew during filming.
Home Secretary Theresa May and French counterpart Bernard Cazeneuve call on EU nations to tackle the root causes of the migrant crisis.