Punjab Chief Minister Shahbaz Sharif called up Prime Minister Syed Yousuf Raza Gilani and voiced regret over statement passed by some of his party against Bhutto dynasty, report said on Thursday. According to the sources, the CM Shahbaz stressed upon the conveyance of his sentiments to the leadership of Pakistan Peoples Party (PPP). It should be mentioned here that Speaker of Sindh Assembly Nisar Ahmed Khuro demanded an apology from PML-N chief Nawaz Sharif over the statement by Khawaja Saad Rafique against Bhutto family. Subsequently, the Punjab CM contacted the PM Gilani over phone and extended his apology.