A UN panel has criticised Israel and Hamas for failing to conduct credible and adequate probes into alleged war crimes during the 2008-2009 Gaza war.
Israel only investigated low-ranking officials, the three-member panel said.
And a Hamas inquiry "made no serious effort" to address allegations raised by a previous UN investigation led by South African Judge Richard Goldstone.
More than 1,400 Gazans and 13 Israelis died during Israel's 22-day assault on Gaza which began in December 2008.
Israel said Operation Cast Lead was aimed at halting militant attacks on Israel from Gaza.
According to the United Nations, the Israeli military campaign left more than 50,000 homes, 800 industrial properties and 200 schools damaged or destroyed.
'Far short'"The investigations... remain incomplete in some cases or fall significantly short of meeting international standards in others," said the report by the three-member panel appointed by the UN Human Rights Council.
Israel did not investigate the role of "officials at the highest levels" who were complicit in human rights violations, as alleged by the Goldstone report, or other alleged violations which occurred in the occupied West Bank during the conflict, the report said.
Officials at Israel's mission to the UN in Geneva declined immediately to comment.
BBC News
