Israeli tanks and troops started to withdraw from three strategic points in the centre, north and western parts of Nablus on 20 April.
Nearly two weeks earlier, Israeli tanks supported by helicopter gunships fought fierce battles with Palestinian fighters around the Al Ayn refugee camp in northern Nablus.
Hospital records show that 71 Palestinians have been killed there since the Israeli army entered on 3 April.
A Reuters correspondent there saw a mortuary overflowing with corpses - including 25 piled in a refrigerated dairy truck.