A regional slump led to a decline in shares on Tuesday. The Straits Times Index, or STI, was down 0.4%. This decrease occurred amid a broader regional downturn.

Further information on this decline is available from The Business Times. Details on the specific factors contributing to the slump are not provided here, but the source publication may offer additional insights.

The STI's 0.4% drop is the only specific detail provided on the decline. For more information on the regional slump and its impact on shares, readers can refer to The Business Times.