Police spokesman in the state, Wasiu Abiodun, in a statement in Minna on Sunday, said the victims were abducted at about 02:00 a.m. on Friday.
The police command in Niger says they have rescued eight persons kidnapped at Sarkin Pawa forest of Munya local government area.
Police say they have arrested four suspected bandits and their marabout, rescuing 40 cows and 15 sheep in Niger.
The district head was kidnapped from his palace on Saturday night.
The party chieftain was abducted on August 7 while on his way to farm.
Mohammed Idris, Commissioner for Information and Strategy in Niger, has been kidnapped by bandits.