City police on Tuesday registered cases against three prayer leaders for alleged misuse of loudspeakers and delivering anti-government speeches during their Friday sermons.Police officials deputed outside the mosques reported to Aabpara police station that the prayer leaders of three mosques used loudspeakers, which had been banned by the district administration. They were Maulana Abdul Aziz of Lal Mosque, Maulana Muhammad Ali Fazal of Jamia Masjid at Sector G-6/2 and Maulana Abdul Aziz Hanif. The officials had also informed their high-ups that these clerics had delivered speeches against the government. On the recommendations of the Legal Branch, police have registered cases against all the three under Section 188 of the Pakistan Penal Code. Meanwhile, Aabpara police have arrested a person, Imran Khalid, on the charges of distributing objectionable material about the marathon race that was held in Lahore last Sunday.