From Israel Today:
The Israeli army raided the Samarian town of Nablus on Sunday morning in an operation targeting terrorist organizations, calling it "activity against terror infrastructures." Israel Defense Forces officials said the large-scale operation would end only after all its goals were achieved. Troops entered with about 80 jeeps and several bulldozers for the purpose of demolishing explosive labs. They also closed the main entrance to the city and placed the more than 50,000 residents in the town under curfew.