Istanbul (dpa) - Since the start of the Turkish offensive in Syria, more than 70,000 people have been displaced within 48 hours, according to UN figures. The UN Human Rights Office spoke of "disturbing reports" of ground attacks by Turkish troops or groups affiliated with the Turkish military. Among other things, the water supply, dams, power plants and oil fields were hit, a spokesman said. In Al-Rakka, local authorities have set up four centers for displaced persons, the WFP reported.