An officer of the Frontier Corps killed in a separate landmine explosion.
Frontier Corps spokesman says Balochistan Republic Army militants were targeted in Gandyari town.
Provincial home minister says 30 members of Baloch Republican Army, one paramilitary killed in fresh operation.
Over a dozen attackers armed with assault rifles opened fire on Dodha Khan and his family, killing seven people.
Former president interrogated at his Islamabad home, where he remains under house arrest.