Hong Kong  - Hong Kong stocks plunged 3.16 per cent Tuesday on renewed concerns over the US economy.

The Hang Seng index closed 692 points lower to end trading at 22,120 points, its lowest level in 15 weeks. Turnover was 63.25 billion Hong Kong dollars (8.7 billion US dollars).

The fall wiped out gains from Monday's rally when the index rose more than 2 per cent on talks of market-boosting measures in China.

However, analysts said investors took fright and dumped blue chips following overnight losses on Wall Street and when the measures failed to materialise.

Losses were across the board with heavyweights HSBC and China Mobile leading the way, losing 2.4 per cent and 2.75 per cent respectively.

Shares in stock market operator Hong Kong Exchanges & Clearing slumped 5.87 per cent on concern over the low turnover. (dpa)