Three people were arrested over killing of a 60-year-old man during a clash over offering prayer at a mosque in Mohanganj upazila in Netrakona.  The arrestees were identified as Waliullah, Nizam, and Kanchan, said Rashedul Hasan, Officer-in-Charge of Mohonganj police station.  The arrestees were produced before court on Sunday, he said.  The accused were arrested on Friday night after Alamgir Hossain, son of deceased Moti Mia, 60, filed a murder case accusing 22 people and several more anonymous people, said OC Rashedul Hasan.  Also Read: Attempted rape victim commits suicide in Bogura: 2 arrested The incident occurred on Friday at Kewardighi village at Samaj-Sahildeo union parishad over delivering sermon after jum’a prayer at a village mosque.  The supporters of Nurul Islam, president of the mosque committee and former Union Parishad member, clashed with Abu Shahin Akhand, general secretary of the committe.  During the clash Abu Shahin’s uncle Moti Mia died on the spot, said OC Rashedul Hasan.