Information Minister Sherry Rehman has said Pakistan Muslim League-Nawaz (PML-N) chief Nawaz Sharif's speech in Sheikhupura is an open invitation to mutiny and his comments against President Asif Ali Zardari are regrettable, a private TV channel reported on Thursday. According to the channel, Sherry said provoking the government and law enforcement officials by Nawaz was akin to taking the country towards disaster and confrontation, and weakening state institutions. She appealed to the PML-N's 'responsible' leadership to rein in their emotions and avoid making personal comments. She said Prime Minister Yousuf Raza Gilani had said the "review option" was still open, and the PML-N should avoid politics of confrontation. About governor's rule in Punjab, she said it was imposed under Article 234 of the constitution, the channel quoted its sources.