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 .
Amnesty International calls for U.N. arms embargo on Israel and Palestinians . Group says both sides used weapons from abroad to attack civilians in Gaza conflict . Amnesty issues a 38-page report detailing `` evidence of war crimes '' by all parties . Amnesty said it found munitions fragments in school playgrounds , hospitals , homes .