HONG KONG - ANGRY Hong Kong investors, some banging gongs and others waving banners, scuffled outside a bank on Friday as frustration mounted over losses tied to investments linked to failed US bank Lehman Brothers.

Several hundred investors, many of them elderly retirees, marched to eight banks which had sold Lehman structured products, including ABN Amro, Standard Chartered, Bank of China, Citic Ka Wah and DBS bank, demanding compensation for their losses.

Some investors tried to barge into a DBS bank branch on Hong Kong island, jostling with security staff who linked arms to form a human barricade.

'The banks are cheating us', shouted some investors, while others banged gongs and waved protest banners accusing the banks of misleading investors on the risks involved.

DBS said in a statement e-mailed to Reuters that a dedicated customer care centre had been set up to deal with concerns.

'DBS Bank (Hong Kong) Limited is deeply concerned about the anxiety our customers are experiencing on this matter', a spokesman said in the statement.

'Every customer is important to us and in cases where our standards are not met, DBS will not hesitate to make compensation', she said.

One female investor burst into tears and apparently fainted outside a Standard Chartered bank branch, television pictures showed.

Local media reports say tens of thousands of Hong Kong investors had bought Lehman-issued and referenced credit-linked notes, called mini-bonds, worth HK$15.6 billion (S$2.96 billion).

DBS said earlier this week that most of the notes were worthless, provoking the investor backlash.

Investors in Singapore and Indonesia have also hit the streets in protest, expressing outrage that the failed products they bought were actually complex derivatives. -- REUTERS