The attack targeted members of an anti-Taliban militant group.
A Taliban suicide bomber in Pakistan's restive northwest killed at least 11 members of a rival, pro-government militant group on Thursday. The attack highlights the complicated divisions among militant groups operating in Pakistan, some of which receive support from the government or the powerful intelligence agency.
The bomber killed at least 11 people and wounded 20 others, most of them members of a militant faction opposed to Taliban leader Baitullah Mehsud. South Waziristan is a stronghold of Mr. Mehsud's movement.
The bomber struck at a hotel in the busy Jandola Bazar in Tank district of Dera Ismail Khan, as scores of anti-Taliban militants sat down for their meals, TV channels quoted officials as saying.
Officials said the roadside restaurant's visitors at the time included some two dozen militants opposed to Pakistani Taliban leader Baitullah Mehsud. They were members of the 'Turkestan Bittani' group. However, their leader was not in the group.
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