PESHAWAR - At least 24 people were killed in two separate bomb attacks in northwest Pakistan on Sunday, police said.The attacks came after reported death of al Qaeda operative Ilyas Kashmiri in a U.S. drone missile strike in the ethnic Pashtun tribal region of South Waziristan on the Afghan border.Militants vowed to take revenge of the killing.A bomb exploded at a bakery in the cantonment area of Nowshera city, killing 18 people, police said.Hours earlier, another bomb blast at a bus stop on the outskirts of Peshawar, capital of northwestern Khyber Pakhtunkhwa province, killed six people and wounded, police said.