Pakistan’s former prime minister Imran Khan said police were surrounding his house in an upscale area of the eastern city of Lahore and he could be arrested.
But police said officers were surrounding the home because dozens of people linked to last week’s violent attacks on public property and military installations were hiding there.
“Probably my last tweet before my next arrest. Police have surrounded my house,” Mr Khan wrote on Twitter.
The development comes hours after Amir Mir, a spokesman for the Punjab provincial government, said Mr Khan has 24 hours to hand over 40 suspects allegedly hiding at his home or face a police raid.
So far, 3,400 suspects have been arrested and more raids are under way, he told a press conference.
Khan was ousted in a no-confidence vote in April last year.
He has claimed the move was illegal and a Western conspiracy and has campaigned against the government of his successor, Prime Minister Shahbaz Sharif, demanding early elections.