JERUSALEM — An international rights group said Wednesday that Hamas security forces in the Gaza Strip commit rampant abuses against Palestinian prisoners, including beatings with metal clubs and rubber hoses, mock executions, and arbitrary arrests, and urged the Islamic militant group to swiftly reform its criminal justice system.
In a new 43-page report, Human Rights Watch documented a long list of abuses that it said Palestinians in Gaza endure under the justice system run by Hamas, which has ruled the seaside strip for the past five years.
‘‘There is ample evidence that Hamas security services are torturing people in custody with impunity and denying prisoners their rights,’’ said Joe Stork, deputy Middle East director for the New York-based group. ‘‘The Gaza authorities should stop ignoring the abuse and ensure that the justice system respects Palestinians’ rights.’’
Hamas seized control of Gaza in 2007 after street battles with the Palestinian’s Western-backed secular Fatah party. Since then, the Palestinians have been split between Prime Minister Ismail Haniyeh’s Hamas, which controls Gaza, and Palestinian President Mahmoud Abbas’s Fatah, which governs the West Bank.
The West supports Abbas’s West Bank government but mostly shuns Hamas, considered a terror group by the United States, the EU, and Israel because it has carried out attacks over the years that have killed hundreds of Israelis, most of them civilians, blowing up buses, cafes, and other such targets.
In a statement, Hamas’ Interior Ministry denied the allegations and accused Human Rights Watch of political bias.
‘‘The cases mentioned in the report, although they are not accurate, took place long time ago, and we wonder why they were raised now,’’ the ministry said. ‘‘Regarding the issue of torture: We don’t have such a practice in any prisons.’’
Human Rights Watch said it based its conclusions on interviews with individuals who have been subject to abuse and their families, as well as lawyers, judges, and Palestinian rights groups in Gaza. It said it also reviewed case files and court rulings.
The rights group cited the case of Abdel Karim Shrair, arrested by Hamas in August 2008 and tortured for three weeks, according to the man’s family and lawyers.
Shrair faced further abuse at the hands of Gaza’s internal security agency and was denied visits for weeks, the report said. He was then charged with collaborating with Israel based on confessions made under torture, according to his lawyer.
Shrair’s mother, Safia Ahmad Shrair, told the rights group that when she was allowed to see him in October of that year, his legs and face were bruised, his feet were swollen, his hands and arms had rope marks, and his chest had burn marks.
Hamas executed Shrair in 2011 by firing squad.
His mother said Hamas forbade the family from burying him themselves and beat her with sticks when she tried to hold his body.