RAWALPINDI - Heavy contingent of police and Rangers Thursday held a joint Flag March to maintain peace and ensure law and order during the holy month of Muharram-ul-Harram. Regional Police Officer (RPO) Rawalpindi Aslam Khan Tareen led the Flag March while City Police Officer Rao Muhammad Iqbal Khan, Senior Superintendent Police (Operations) Yasin Farooq, SPs, SDPOs and SHOs, Rescue 1122, elite force participated in it. The Flag March started at 11:am and after patrolling various routes of the city, culminated at police lines.