The caretaker government believes that the culprits of vandalism of public and security installations on May 9 are taking refuge inside the former premier's house.
On Wednesday, the regime issued the ultimatum to the party to produce some 30 to 40 suspects behind the arson and unrest.
Media reports suggest that there is a heavy police presence outside the residence and roads leading to it have been closed for vehicular traffic. The camps of PTI workers at the house, too, have been vacated.
The arrests will begin once the government accords an approval to the law enforcers, who will 'strategise the move' to avoid any confrontation.
Meanwhile, PTI's official Twitter handle asked for media coverage of the "search operation order given by illegal caretaker government".
On Wednesday, PTI Senior Vice President Fawad Chaudhry condemned the riots and termed the events of May 9 "extremely shameful".
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Earlier, Imran, too attempted to distance himself from the violent protest, rioting and coordinated attacks on the military installations, but has yet to categorically denounce the violence or actions of the rioters.
According to him, those involved in the mob attacks had no association with his party and so they should not be viewed as such.
Many of the government and private installations were vandalised on May 9 after Imran Khan's arrest in the Al-Qadir Trust case.
The installations attacked included Corps Commander Lahore's residence and the General Headquarters (GHQ) in Rawalpindi.
The acts of vandalism drew a strong rebuke from the country's armed forces. ISPR, the military's media affairs wing, said that it was aware of the perpetrators and would ensure due action against them.
The ISPR also said that any attempts to distort the facts related to the May 9 mayhem would all be futile.