At least 15 children killed when bus, truck collide in India

A woman mourns over the bodies of her daughters Radhika, 14, right, and Shalini, 12, who were killed in an accident, in Ramnagar village, near Etah, India, Thursday, Jan. 19, 2017. A truck loaded with sand collided with a school bus early Thursday, killing more than 20 young children in the northern Indian state of Uttar Pradesh, police said. (AP Photo/Altaf Qadri) (The Associated Press)

A woman, left, mourns over the bodies of her daughters Radhika, 14, lying front, and Shalini, 12, who were killed in an accident, in Ramnagar village, near Etah, India, Thursday, Jan. 19, 2017. A truck loaded with sand collided with a school bus early Thursday, killing more than 20 young children in the northern Indian state of Uttar Pradesh, police said. (AP Photo/Altaf Qadri) (The Associated Press)

Mother of 8-year-old Janeesh, second left, mourns the death of her son in an accident in Bhagwanpura village, near Etah, India, Thursday, Jan. 19, 2017. A truck loaded with sand collided with a school bus early Thursday, killing more than 20 young children in the northern Indian state of Uttar Pradesh, police said. (AP Photo/Altaf Qadri) (The Associated Press)

Police say at least 15 young children were killed after a school bus collided with a truck loaded with sand in northern India.

Police official Daljeet Chaudhry said 40 other children were injured in the accident Thursday morning when the speeding truck collided head-on with the school bus.

The children were aged between 3 and 12 years and were studying at a school in the town of Etawah in Uttar Pradesh state.

Chaudhry said there was low visibility caused by during dense winter fog at the time of the accident.

Accidents are common on Indian roads, with most blamed on reckless driving, poorly maintained roads and aging vehicles.