The Gaza-based Salafist group Jaysh al-Umma accused the ruling Hamas movement on Monday of arresting and torturing six of its members, including its leader.
In a statement obtained by AFP, the group said it was breaking the "media blackout" over the arrest of its leader Sheikh Ismail Hamid, also known as Abu Hafs al-Maqdisi.
He is "languishing in the dark cells of the Hamas government, subjected to harsh interrogation," the group said, adding that five other members were also being held by Hamas forces.