ISLAMABAD: Information and Broadcasting Minister Marriyum Aurangzeb said that the PTI has failed to produce any counter evidence relating to the documents submitted by the PML (N) in Panama case. While talking to media outside the Supreme Court on Wednesday, she asked the PTI chairman to shun negative politics and contribute towards progress of the country. She said the documents relating to the properties of Hassan Nawaz and Hussain Nawaz will soon be presented before the apex court. The prime minister is taking steps towards improving the security situation as well as taking the country forward on economic front, she added. Imran Khan should return to positive politics and contribute to the development of the country. She said the opposition should not do politics on security matters, she concluded