"We are here because we have warm hearts, and we want to make sure that now we try and remove the cold-hearted people from our parliament, from our government," she added.
Tuesday's major anti-government demonstrations came as the Supreme Court ordered the arrest of Pakistani Prime Minister Raja Pervaiz Ashraf in a corruption case.
The events set the stage for renewed political crisis in Pakistan, a key US ally in the fight against Islamic militants and efforts to stabilise neighbouring Afghanistan.
