Fatah's top negotiator said Wednesday that rival movement Hamas was "not committed" to a landmark Palestinian reconciliation agreement, two days ahead of a key deadline to implement the accord.

"Hamas is not committed to the agreement it signed in Cairo to end the division," Azzam al-Ahmad, chief negotiator for Palestinian president Mahmud Abbas's Fatah, told AFP. "Until this moment, the problems and obstacles from Hamas are still there and are increasing."

Under the agreement, Hamas is due to hand over control of the Gaza Strip to the Palestinian Authority by Friday after a decade of dominance there, but doubts have emerged over whether it will occur.