TO GO WITH STORY by Rob Lever, US-econom...Orlando, UNITED STATES: TO GO WITH STORY by Rob Lever, US-economy-property (FILES) In this 02 February 2007 file photo, a new housing subdivision outside of Orlando, Florida, is seen in an aerial photograph. Fresh troubles in the subprime segment of the US housing market have ignited fears of contagion that could affect the financial sector and possibly the broader economy, analysts say. Those fears were fanned this week as rating agencies Standard & Poor's and Moody's both warned of potential credit downgrades for bonds backed by subprime mortgages, which could affect investors and banks that issued the obligations. "New data reveals that delinquencies and foreclosures continue to accumulate at an increasing rate," S&P said. The news triggered a slide in the US dollar and Wall Street shares on 10 June 2007 as investors reassessed their exposure to risky assets like mortgage-backed securities. AFP PHOTO/JEFF HAYNES/FILES (Photo credit should read JEFF HAYNES/AFP/Getty Images)