Delhi Chief Minister Sheila Dikshit today ordered an inquiry into the alleged sexual abuse of children at a privately-run orphanage in New Delhi. She said government will look at the deeper issues and come out with measures to protection to children living in orphanages.Delhi government had last week appointed a senior official as administrator of the Orphanage to oversee its functioning.Police has already arrested four persons in connection with the alleged sexual abuse in the orphanage.