KOZHIKODE: Two children were killed and one was seriously injured in an accident at Nethaji Nagar, near Kottuli, in the city. The police identified the dead as Gautham Krishna, 10, and his cousin Adarsh, 7. Adarsh's sister Arathi, 12, and Gautham' father S Gopakumar sustained injuries. Gopakumar was riding a motorbike, which was rammed by a car. Arathi's condition is critical, according to medical college hospital sources. The car, which hit the motorbike sped away and is yet to be identified, according to the police.