A roadside bomb blew up next to an Israeli army jeep Friday night in the West Bank city of Nablus, where the military has been carrying out raids against militants, the army said. There were no casualties.

The explosion reverberated throughout the city and knocked out power in the area.

Witnesses said the Israeli army had closed off the area, and emergency military vehicles rushed to the scene. A helicopter hovered overhead.

The army said no one had been hurt in the incident and did not release further details.

The army has been conducting a series of raids in Nablus (searchover the past two weeks aimed at Palestinian militant groups operating in the area.