Khaled Abu Toameh writes in the Jerusalem Post that Fatah officials in Ramallah told the paper Hamas militiamen had been assaulting many Fatah activists since the beginning of Operation Cast Lead last Saturday.

http://www.jpost.com/servlet/Satellite?pagename=JPost%2FJPArticle%2FShow...

Fatah officials said at least 75 activists were shot in the legs while others had their hands broken.

Wisam Abu Jalhoum, a Fatah activist from the Jabalya refugee camp, was shot in the legs by Hamas militiamen for allegedly expressing joy over the IDF air strikes on Hamas targets.

Meanwhile, sources close to Hamas revealed over the weekend that the movement had "executed" more than 35 Palestinians who were suspected of collaborating with Israel.

Is this the Hamas version of friendly fire?