According to the Frontier Corps (FC) spokesperson, the accused belonged to banned outfits.
"The operation was conducted in Kli Khanu and Khadrotabad areas of the district," he said.
The spokesperson also said that a large number of weapons, hand grenades and suicide jackets were recovered from the possession of the suspects.
Lauding the efforts of the FC personnel, Inspector General FC said the security forces will continue fighting against terrorists until the war against terror is taken to its logical conclusion.
On March 29, at least five members of the Balochistan Republican Army (BRA) were also killed while six others injured during a search operation in Mastung district.
Read: FC kill 5 suspected militants in Mastung search operation
The suspects were accused of attacking eight oil tankers and abducting the drivers on March 23.
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