Three persons of a family were killed when their motorcycle plunged into a roadside ditch, about 40km from here on Sunday. According to police, Bashir Ahmed, along with his wife Sonan Mai and son Shabbir Ahmed, went to his fields on a motorbike in the morning. On their return from the fields their two-wheeler plunged into a ditch, killing Bashir and his wife Sonan Mai on the spot, while Shabbir expired in the hospital.