SENIOR PTI LEADERS, WORKERS VOLUNTARILY SURRENDER TO POLICE: In ‘national interest’

* Qureshi, Asad Umar, Azam Swati, Omer Cheema, Waleed Iqbal and Dr Murad Raas among 47 arrested PTI leaders and workers
* Police says 80 detained under Section 3 of Punjab Maintenance of Public Order Ordinance