Hamas on Monday accused Israel of killing a senior leader of the Palestinian terrorist group who was being held in an Israeli prison.
Hamas named the leader as Omar Daraghmeh, 58, from the city of Tubas in the north of the Israeli-occupied West Bank. It described his death as an "assassination."
The Israel Prison Service said earlier on Monday that a Palestinian prisoner born in 1965 had died after "feeling unwell and going to the prison clinic for tests." It did not name the prisoner, but said he was from the northern West Bank.
The Israel Prison Service said it was reviewing the circumstances of the prisoner's death. A spokesperson for the service did not immediately provide comment on Hamas' accusation that Daraghmeh was killed.