A pedestrian passes by a board screening Hang Seng Index in Hong Kong, south China, May 5, 2010. The benchmark Hang Seng Index ended down 2.1 percent, or 435.51 points, at 20,327.54, posting its biggest single-day percentage fall in more than two weeks. (Xinhua/Huang Xiaoyong)

 Hong Kong shares slid to a 10-week closing low Wednesday on deepening fears the Greek debt crisis could worsen and crimp the global economic growth.

The benchmark Hang Seng Index ended down 2.1 percent, or 435.51 points, at 20,327.54, posting its biggest single-day percentage fall in more than two weeks.

The China Enterprises Index of Hong Kong-listed Chinese mainland companies closed down 2.73 percent at 11,539.88.

The market turnover in Hong Kong increased to 76.43 billion HK dollars (9.84 billion U.S. dollars), the highest in more than two weeks, from Tuesday's 55.53 billion HK dollars.

The index's relative strength index has fallen to 34.7, fast approaching the 30 level that points to stocks being oversold.

Shares of Europe-focused fashion retailer Esprit Holdings fell 5.2 percent to a more than three-month low on growing concern about the spread of Europe's debt crisis to other weak eurozone countries.

Jiangxi Copper, China's top integrated copper producer, tumbled 4.6 percent to a near three-month low on falling Shanghai copper prices, tracking a tumble in London copper prices in the previous session on fears of a possible spreading debt crisis in the eurozone. One U.S. dollar equals 7.758 HK dollars.