Police filed a case against PPP workers after they broke through security barriers and stormed into Multan's Qila Qasim Bagh on Saturday.

The PPP group to charge at the venue was led by sons of Yousuf Raza Gilani.

The party's workers were able to storm into the stadium despite the heavy police contingent deployed there, following which clashes occurred between the workers and law enforcement agencies.

PPP chairman Bilawal Bhutto-Zardari has warned the government to desist from carrying out a crackdown against PPP workers in Multan and other parts of Punjab "otherwise there will be protests in every nook and corner of the country", according to a statement by the party.

The Multan meeting scheduled for November 30, which coincides with the PPP founding day anniversary, is the fifth PDM show and is expected to be addressed by Aseefa Bhutto-Zardari as well.