Madrid, May 19 (IANS) Unicef has de**unced the killing of at least 26 children, some as young as seven years old, and the kidnapping of several others during attacks in South Sudan's Unity state over the past two weeks, Efe news agency reported on Tuesday. Survivors told Unicef that entire villages were reduced to ashes by the attacks, while a large number of girls and women were publicly raped and murdered. At least 19 children, including seven girls, have been killed, according to a Unicef statement.