Journalist have mostly been barred from frontline reporting but the BBC's Islamabad correspondent was among several journalists shown the mountain stronghold of Maalam Jabba which the army seized from the Taliban.
Troops had met "stiff resistance" before securing the town, said Athar Abbas, the army's chief spokesman.
He told the BBC that some order had been restored to the streets of Mingora.
"The latest situation is that almost, you could say, about one-quarter of Mingora city is under the possession of security forces there."
He had earlier said it would take 10 days to force out the Taliban.
A Taliban spokesman told the Associated Press that they would not fight the army in Mingora, but pledged to continue "the long war".
Meanwhile, assessments for reconstruction and resettlement of at least $1bn are being considered by the Pakistan government.
"We have started initial satellite surveys for the rehabilitation of homes, business and cultivatable lands," said Qamar Zaman Kaira, the federal information minister.
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