The Palestinian security chief has resigned, six weeks after his Fatah forces were routed by Hamas and forced out of the Gaza Strip, Palestinian sources said.
Mohammad Dahlan cited medical reasons for his resignation and Mahmoud Abbas, the Palestinian president, accepted it on Thursday, the sources said.
Dahlan was heavily criticised within Abbas's Fatah faction for the failure of his security forces to prevent Hamas seizing control of Gaza in June.
He was not in Gaza when fighting broke out between the two factions. More than 100 people were killed in the conflict, while Dahlan was sidelined due to surgery on both knees.
In an interview with the Reuters news agency earlier in the month, Dahlan acknowledged mistakes and said individuals, including himself, should take responsibility for their errors.
Last month, Abbas dismissed Rashid Abu Shbak, another senior security official.