The kidnapping took place early Sunday in Sorange district, the capital of Balochistan.
The outlawed Baloch Liberation Army claimed responsibility, saying the kidnapping was in retaliation for fresh military operations against the Baloch population in the Kohlu district.
"Five officials of Pakistan Mineral Development Corporation including its Project Director were abducted by armed persons from their residential colony," provincial home secretary Zafarullah Baloch told AFP.
The officials have been taken to an unknown place and teams have been sent to search for them, Baloch said.
Local government officials also confirmed the incident and quoting witnesses said more than two dozen armed insurgents on three vehicles came and surrounded the Pakistan Mineral Development Corporation (PMDC) residential colony.
The rebels captured the five officials at gunpoint and also took away two government vehicles, the officials said.
Baloch Liberation Army spokesman Meerak Baloch, speaking by satellite phone to newspaper offices in Quetta, claimed responsibility for the abduction.
"The abduction of government officials is the reaction of newly launched military operation in Kohlu and Chamalung areas and all will be executed one by one if PMDC does not close down its operation in the area," the spokesman said.
Copyright AFP (Agence France-Presse), 2011