The UN chief has refused to answer questions about his own report on children in conflict zones.

Ban Ki-moon, UN secretary-general, refused to answer questions on Wednesday about why Israel was left out of a list of violators in a report on children in conflict zones.

More than 500 children died during Israel's military operations in the Gaza Strip last year.

Al Jazeera's Diplomatic Editor James Bays reports from the UN headquarters in New York.