Authorities have so far been unable to trace Irtiyaz-un-Nabi Gilani and Mujahid Gilani, two nephews of Indrabi, and their wives, the Dawn newspaper reported today.
Irtiyaz fled the scene "firing at the joint raiding team" of policemen and intelligence operatives. The daily quoted its sources as saying that the men were planning "terrorist activity in collaboration with Al Qaeda and Tehrik-e-Taliban Pakistan".
Syed Shoiab Indrabi, the son of Indrabi's brother Zia Ul Haq, was arrested during the raid on a house in Sector G-15 on the outskirts of Islamabad on Saturday.
The disappearance of all occupants of the house "has deepened the mystery surrounding the raid" and their relationship with Aasiya Indrabi, leader of the Dukhtaran-e-Millat, the report said.
Security agencies found a large cache of weapons and explosives at the house. Pakistani media reports said they also found four small surveillance drones that were to be used in terrorist attacks.
There was a workshop, equipped with tools and equipment, in Gilani Manzil's basement. Sources said they suspected that Irtiyaz fabricated the remote-controlled planes found in the house. He made alterations to the planes by installing three to four boxes to carry explosives for terrorist attacks, they said.
