An external view of the stock exchange market building, in Milan, Italy, Thursday, Aug. 4, 2011. Italian prosecutors said Thursday they are investigating two prominent ratings agencies after consumer groups complained about recent turbulence on the financial markets. Investigators told a news conference in the southern city of Trani that documents were seized in the probe at offices of Moody’s and Standard & Poors. Thursday saw strong turbulence on Milan’s main stock exchange, which near the end of the trading day found the FTSE MIB down -3.23 percent. Borsa Italiana said that the final value of the index was not immediately available. It didn’t state a reason, saying only a statement would be forthcoming. (AP Photo/Antonio Calanni)