Pakistani officials say three separate bomb attacks have killed at least 36 people.
Police say three people died in a blast on the outskirts of Peshawar. The Associated Press identified the victims as the leader of an anti-Taliban militia, Israr Khan, and two aides.
Earlier Monday, authorities said a suicide bomber blew himself up at a mosque in the South Waziristan tribal region, killing a local cleric and at least 25 other people.
Police said the cleric, Maulana Noor Mohammed, was the target of Monday's attack. The area is considered a stronghold of Taliban-controlled militant activity.
Elsewhere, a bomb exploded at a meeting of tribal elders in the Kurram region, killing seven people. No group has claimed responsibility for the blasts.
Islamist militants have carried a wave of bombings over the last several years, but they have kept a low profile since Pakistan's flood crisis.
Also Monday, Pakistani officials said a suspected U.S. drone carried out a missile attack in the northwestern tribal region, killing at least five militants.
The attack took place in North Waziristan, near the Afghan border. The area is considered to be a Taliban stronghold, with some areas used as hideouts by al-Qaida.
Some information for this report was provided by AP, AFP and Reuters.