European stocks declined on Wednesday to their lowest levels in nearly two weeks, with technology and automotive stocks leading the losses as investors worldwide abandoned high-risk assets after Fitch Ratings unexpectedly downgraded the U.S. credit rating. The Stoxx 600 index dropped 1.1 percent by 07:08 GMT, reaching its lowest level since July 20. The index fell about one percent on Tuesday, marking its worst day in nearly a month, after weak manufacturing data raised fears of an economic slowdown. Shares of Siemens Healthineers, the German-American medical device company, plummeted 5.4 percent following an unexpected drop in quarterly operating profits due to declining demand for COVID-19 tests. Hugo Boss, the German fashion house, saw its stock fall 4.1 percent despite raising its full-year forecasts.