A bomb has exploded in a hotel in the main town of a militant-infested Pakistani region close to the Afghan border, intelligence officials and a witness said.
They said the blast wounded 12 people in the town of Miram Shah in North Waziristan.
Witness Adnan Wazir says the blast hit a hotel in the main market, badly damaging the building.
Intelligence officials who discussed the blast are not allowed to give their names.
Miram Shah is said by locals to be under the effective control of al-Qaida and Taliban militants.
The United States has long urged Pakistan’s army to launch an operation in North Waziristan.