Helper of an Ijtema return bus was killed and 15 devotees were injured in road crash at Kestopur area on the Dhaka-Magura highway in Magura district on early Monday.The deceased was identified as Sajib Hossain, 23, resident of Khajura area of Jessore.Sub-Inspector of Magura Sadar Police Station Milon said the bus plunged into the roadside ditch as the driver of the bus carrying Ijtema devotees lost its steering, leaving the helper dead on the spot and 15 devotees injured. Several of the injured are in critical conditions.Most of the victims are residents of Simakhali and Shatkhali of Magura, he added.