The M1-Motorway was closed for all kinds of traffic from Peshawar to Islamabad due to dense fog on Sunday morning. The Islamabad-Peshawar Motorway had been closed as visibility was down to zero due to thick fog cover, officials said. According to the Motorway Police, the Burhan Interchange had been shut down and traffic had been diverted to GT Road. The police said traffic in Salt Range was also hampered due to fog.