Deposed Palestinian Prime Minister Ismail Haniyeh of Hamas on Thursday pledged to release some Fatah activists arrested after a huge rally in Gaza City this week. In a televised speech, Haniyeh said Hamas would free all the detainees who were not directly involved in inciting violence against his police. Fatah says about 450 people were arrested after the Monday rally, when Hamas forces opened fire at demonstrators, killing eight and wounding dozens. Haniyeh said an "honest, fair and transparent" committee would investigate the events at the rally. Haniyeh also said a reconciliation committee has begun its work. However, Palestinian President Mahmoud Abbas, who earlier Thursday called for the overthrow of the Hamas regime in Gaza, has refused to talk to Hamas because of its violent takeover of Gaza in June.