A UN report says there may have been war crimes 'on both sides' during last year's Gaza conflict

Israeli Prime Minister Benjamin Netanyahu has slammed the UN's report over the Gaza conflict. (AP)

Israel's prime minister says the United Nations report on the 2014 Gaza war is "biased".

Benjamin Netanyahu said that the UN Human Rights Council, which commissioned the inquiry, does "everything but worry about human rights".

The report found that both Israel and Palestinian militant groups may have committed war crimes during the conflict last July.

More than 2,200 Palestinians, including hundreds of civilians, were killed during the fighting, according to UN and Palestinian officials - while 73 people, including six civilians, died on the Israeli side.

Mr Netanyahu insisted that Israel acted throughout the conflict according to international law.

Gaza's Hamas rulers also rejected the claims in the United Nations report.

Senior Hamas official Ghazi Hamad said that its rockets and mortars were aimed at Israeli military sites, not at civilians.

Mr Hamad criticised the UN investigators for what he said was a false balance between victims and killers.

PA Media