PARIS: Pakistani opposition leader Imran Khan has called on Prime Minister Nawaz Sharif to resign, saying documents leaked from a Panama-based law firm indicate his sons own several offshore companies. Imran warned Sunday he will stage a rally outside Sharif’s residence in the eastern city of Lahore if the prime minister does not quit. He attached no date to the ultimatum.

Information Minister Pervaiz Rashid rejected Imran’s demand, saying Sharif will not quit over “baseless allegations.”

Imran, a former cricket star, is the leader of Pakistan Tahrik-e-Insaf (PTI), which made a strong showing in the 2013 elections.

“We give you time till April 24 to form a commission on these lines. If the rest of the world is investigating, we will give them the opportunity to take action. I will come out with a future course of action on April 24,” Imran said.

The PTI chief threatened a protest sit-in outside the Sharif family residence in Raiwind, if the government did not take steps to form the commission.

“This is the time to stand up. I promise my countrymen that I will not step back this time. The protest had to be abandoned because of an incident at the Army Public School. but I promise you my countrymen, I will not back down this time. If need be we will go to Raiwind and stage sit-ins there.”