Two brothers were killed and five others injured in a head-on collision between a truck and a CNG-run auto-rickshaw at Muradnagar upazila in Comilla at 9.15am on Saturday.The deceased are Rubel, 30 and Sohel, 25. They were the son of Abdul Latif, of village Kacharikanda of the upazila.A head on collision occurred between truck and CNG-run auto-rickshaw on Muradnagar-Iliotganj road, leaving two siblings dead and five others injured, said officer-in-charge of Muradnagar Police Station Mizanur Rahman. The injured people were sent to Comilla Medical College Hospital, the OC added.