Militants fired two rockets at a Frontier Corps check post in the Kohlu area of Dera Bugti on Monday.
According to reports, the rockets fell near an FC post but there was no loss of life.
Last month 43 militants of the outlawed Baloch Republican Army laid down their arms before security forces in Dera Bugti.
The militants also dissociated themselves from Brahumdagh Bugti, and admitted to carrying out subversive activities including blasting gas pipelines in Dera Bugti.
The rockets fired on Monday indicate that anti-state elements are still active in Dera Bugti.