They have taken control of Buner next door and made forays into two more districts.
They swarmed the neighboring district of Buner and secured the right to preach in mosques there.
The recently elected government took quick measures to end a paramilitary force mutiny that erupted Wednesday, though the situation remains tense.
The Awami National Party, which leads the ruling coalition in the crucial North West Frontier Province, espouses a nonviolent approach to tackling extremism.
Some White House officials want to embrace victors in parliament; others don't want to abandon Musharraf.
Key Taliban figures in the tribal belt remain at large despite 20,000 troops' efforts.
Residents in the northwest signaled their frustration with Islamic parties' poor governance.
In Peshawar, where frustration is high over President Musharraf's inability to stop rising insecurity, law-and-order issues could shape the outcome of Feb. 18 election.
Top critic Nawaz Sharif says President Pervez Musharraf hopes to silence the opposition ahead of Feb. 18 elections