The attack was carried out at 3am, after which the assailants fled the scene, security forces said.
The dead were identified as Tahir Shambani, Ghulam Sharif Shambani and Pir Bakhsh Shambani, while Rezakh Shambani and Hafizullah Shambani were injured. The victims belong to the Shambani tribe.
The attack was strongly condemned by former home minister Sarfaraz Bugti, who demanded that the culprits be caught at the earliest. A search operation has been launched to find the miscreants.
