Damning report by rights group claims Hamas also carried out other horrific abuses in 2014 as it ‘ruthlessly settled scores’ with opponents Hamas has been accused of using the cover of last summer’s war in Gaza to carry out summary executions, including to “settle scores” against opponents under the pretext they were “collaborators with Israel”.The claims that Hamas committed rights abuses amounting to war crimes are made in a damning report by Amnesty International highlighting abuses committed by Hamas during last summer’s 50-day war.