$SIA (C6L.SG)$ ：Oil extends losses, down 4% to US$73.83. Cru...

Crude oil dropped further on Tuesday, with both Brent and West Texas Intermediate (WTI) futures plunging over 4%.

Concerns over demand in the Eurozone and China are likely to be compounded with the release of manufacturing activity data for the United States.

At the mean time, Dow Jones Industrial Average down 500 points.