Along the route, supporters dotted the roadside, holding the red-and-green flags of Khan’s political party, as the convoy moved through the rugged countryside of Punjab Province and into northwestern Khyber Pakhtunkhwa Province.

‘‘We are hearing reports that the government is making it difficult for us to go to South Waziristan,’’ said Shafqat Mehmood, a party official. ‘‘We will only know when we reach Dera Ismail Khan.’’