Dozens believed dead in reprisal attacks as Hamas retakes control

Evidence is emerging of a wave of reprisal attacks and killings inside Gaza that have left dozens dead and more wounded in the wake of Israel's war.

Among the dead are Palestinians suspected of collaborating with the Israeli military. Others include criminals who were among the 600 prisoners to escape from Gaza City's main jail when it was bombed as the war began. Their attackers are thought to be their victims' relatives.

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During and after the war, there have also been attacks on security officials from Fatah, the bitter rival of Hamas, the Islamist movement in control of the Gaza Strip. One witness told the Guardian how her brother, a Fatah military intelligence officer, was shot three times in the legs in an apparent punishment attack by gunmen from Hamas's armed wing.

The Israeli newspaper Ha'aretz reported yesterday that several Palestinian agents working in Gaza for the Israeli security services during the war had been killed, and cited one source as saying that agents were "intercepted" by Hamas because their intelligence had been used "carelessly" by the military.

Palestinians in human rights organisations are reluctant to speak publicly about what is a sensitive issue, but one respected human rights worker in Gaza said he believed between 40 and 50 people had been killed in reprisal attacks since the start of the war. But there was not yet enough evidence to suggest this was an organised campaign by Hamas, he said.