( CNN ) -- The human rights group Amnesty International is calling on the United Nations to impose an arms embargo on Israel and the Palestinians , saying both sides used weapons supplied from abroad to carry out attacks on civilians during their three-week conflict in Gaza . Palestinian children make coffee behind a bullet and rocket riddled wall in Rafah , Gaza , on January 24 , 2009 . The London-based group issued a 38-page report Sunday night that detailed `` evidence of war crimes and other serious violations of international law by all parties . '' Israeli forces used white phosphorus and other weapons supplied by the United States , killing hundreds of civilians and destroying homes , the group said . The use of white phosphorus is restricted under international law . In the early days of the Gaza conflict , the Israel Defense Forces denied using the ordnance . But later , Israeli officials said only that any shells fired in Gaza were `` in accordance with international law . '' Amnesty said its researchers found munitions fragments littering school playgrounds , hospitals and homes after the 22-day fighting in Gaza ended in January . Many of the munitions used by the Israeli army were American-made , and included bombs , white phosphorus remains and missiles seemingly launched from unmanned drones , Amnesty said . `` To a large extent , Israel 's military offensive in Gaza was carried out with weapons , munitions and military equipment supplied by the U.S.A. and paid for with U.S. taxpayers ' money , '' Malcolm Smart , Amnesty 's Middle East director , said in the report . He called on the United States to immediately suspend military aid to Israel . The United States is to provide $ 30 billion in military aid to Israel under a 10-year agreement that runs till 2017 -- a 25-percent increase compared with the period preceding the Bush administration , Amnesty said . The group also took to task Hamas , the Islamic militant group that has ruled Gaza since 2007 . It said it found remains of Qassam and Grad rockets fired by Palestinian armed groups in civilian areas . Grad rockets have a longer range than the crude , home-made Qassams . Israel said Palestinian militants have fired about 10,000 rockets and mortars into Israel in the past eight years . `` These unsophisticated weapons are either smuggled into Gaza clandestinely or constructed there from components secretly brought in from abroad , '' Amnesty said . Israel 's foreign ministry responded harshly to the report , calling it biased and `` dedicated almost exclusively to the censure of Israel . '' The ministry said the report does not mention Hamas ' `` deliberate use '' of civilians as human shields . It also said Israel 's use of weapons complied with international law and denied that its forces targeted civilians . `` The comparison of the supply of weapons to Israel and the Hamas in inappropriate , '' the ministry said in a statement . `` Israel is a sovereign nation that is obligated to use force to protect its citizens , while Hamas is a terror organization . '' Israel launched the attack on Hamas in Gaza on December 27 with the stated aim of ending rocket attacks on southern Israel . More than 1,300 Palestinians died and about 5,400 others were wounded . Thirteen Israelis , including 10 soldiers , were killed in the fighting . Since the two sides declared a cease-fire on January 21 , militants have sporadically fired rockets into Israel . Israel has responded with airstrikes .
Amnesty calls for Amnesty arms embargo on Gaza and Palestinians . Group says both sides used weapons from abroad to attack civilians in Israel conflict . Amnesty International issues a 38-page report detailing `` evidence of war crimes '' by all parties . Amnesty said it found munitions fragments in school playgrounds , hospitals , homes .