Hong Kong shares suffered fresh losses at Wednesday's open following a drop on Wall Street fuelled by concerns about an impasse in talks to raise the US debt ceiling and avoid a default.

The Hang Seng Index fell 0.8 percent to 19,279.

The Shanghai Composite Index shed 0.3 percent to 3,237, while the Shenzhen Composite Index on China's second exchange also eased 0.3 percent to 2,012. (AFP)