Rourkela: A youth was killed and five others were injured in two separate road accidents in Bonai sub-division of Sundargarh district on Thursday. Kiran Kumar Mahanta (24), a resident of Sradhapur, died when his car veered off the road and plunged 10 feet below. His companion, Debasis Mahanta (25), sustained critical injuries. In a separate incident, four people were injured in a head-on collision between a car and a motorcycle at Ganighosa.