Update: One woman has died and the injury count grown to 39 in Wednesday's bombing in Jerusalem.

As many as two dozen people were injured in a bombing attack in Jerusalem Wednesday. Initial reports indicate it was not a suicide bombing and that the explosion took place on or near a bus in front of the Jerusalem Conference Center.

So far, no one has died from the attack, but the Jerusalem Post reports four of the wounded are severely injured. Security officials are searching to make sure no other bombs have been planted in the area, Haaretz reports.

The attack comes as Israel retaliates against Hamas for increased rocket fire coming into Israel from Gaza. Israel bombed a rocket launcher after it fired a missile at Ashdod. Palestinian officials say the Israeli response killed eight people, including four civilians.