NABLUS, West Bank, Jan 7, SPA -- Israeli troops carried out a large-scale arrest raid in this West Bank city earlySunday, surrounding a building and detaining at least fourpeople, Palestinian security officials said. About 20 army jeeps drove into Nablus before dawn, and the sound of explosions and gunfire could be heard across the city for several hours, the Associated Press quoted residents as saying.--SPA www.spa.gov.sa/416314