Amnesty International is calling on the US government to immediately halt the transfer of arms and fuel to Israel for use by the Israeli military.
The organisation has called for a comprehensive arms embargo on all parties to the conflict, amidst mounting evidence that war crimes are being committed by both sides in the past four weeks in Gaza and Israel.
It comes as a Gaza ceasfire holds for a second day following 29 days of conflict.
At a protest in Dublin, the organisation demanded that the US government immediately end its ongoing deliveries of large quantities of arms to Israel which - they say - have provided the tools to commit further serious violations of international law in Gaza.
Executive Director of Amnesty International in Ireland, Colm O'Gorman, pictured in a mocked up US military vehicle as volunteers lie under it at the top of Grafton Street
The call comes amid reports that the Pentagon has approved the immediate transfer of grenades and mortar rounds to the Israeli armed forces from a US arms stockpile pre-positioned in Israel, and follows a shipment of 4.3 tons of US-manufactured rocket motors, which arrived in the Israeli port of Haifa on July 15th.
These deliveries add to more than US$62m (€46.4m) worth of munitions - including guided missile parts and rocket launchers, artillery parts and small arms - already exported from the US to Israel between January and May this year.
"If the US government continues to supply arms to Israel and fuel for military vehicles and fighter jets being used in attacks which have caused many, many hundreds of civilian deaths and horrific injuries, it will have more blood on its hands" said executive director of Amnesty International Ireland, Colm O'Gorman.
"Instead of continuing to send shipments of fuel and arms to the Israeli military, the USA must immediately suspend all such transfers and back an international investigation into the atrocities being carried out by both sides" he added.
Executive Director of Amnesty International in Ireland, Colm O'Gorman, pictured in a mocked up US military vehicle at the top of Grafton Street
The USA is the largest exporter of military equipment to Israel. According to data made public by the US government, its arms transfers to Israel from January to May 2014 included nearly US$27m (€20.2m) for "rocket launchers", US$9.3m (€6.9m) worth in 'parts of guided missiles' and nearly US$762,000 (€570,748) for 'bombs, grenades and munitions of war'.
Amnesty International is calling on the UN to immediately impose a comprehensive arms embargo on Israel, Hamas and Palestinian armed groups with the aim of preventing violations of international humanitarian law and human rights by all sides.
In the absence of a UN arms embargo, it is calling on all states to unilaterally suspend all transfers of military equipment, assistance and munitions to all parties to the conflict.
They should not resume until violations committed in previous conflicts are properly investigated with those responsible brought to justice, the group says.
