Interior Minister Rehman Malik says the Taliban will not be allowed to take advantage of the flood crisis to increase its support.
Talking to the BBC, Malik said he was aware of the danger that the Taliban could increase its foothold in flood-hit areas by taking on charitable roles and winning support from survivors.
He said this would not be allowed, and blamed the concerns on internal "party politics".
The comments come as the UN said it had received less than half the 460 million dollars it needs for the relief effort.
The shortfall has been blamed on fears over corruption and Taliban influence.
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