Israeli aircraft struck the Gaza Strip repeatedly early on Sunday and the Army said it had targeted sites used by militants firing rockets into Israel and roads for transporting the makeshift missiles.Four Palestinians were wounded in at least nine raids, including three policeman and a baby who was hit in the face with shrapnel, medics said.Key bridges in the northern Gaza Strip were also targeted,cutting roads for thousands of people. ‘‘These routes are used by terrorists to reach the areas from which they launch rockets at Israeli targets,’’ the army said.Israeli warplanes also carried out mock raids over Gaza City, shaking homes with deafening sonic booms.Repeated violence has dimmed hopes for peacemaking that had been kindled by Israel’s withdrawal of troops and settlers from the impoverished Gaza Strip in September after 38 years of occupation.Militant groups agreed to follow a truce until the end of the year. —Reuters
