Published: May 30, 2012 9:11 PM EDT
Updated: May 31, 2012 6:31 AM EDT

Most commodity prices are falling as more negative news from Europe renews concerns about slowing global demand.

Prices for oil, copper, platinum, grains and beans dropped Wednesday. Gold, silver and palladium were down for most of the day but staged a late rally to end higher.

The latest concerns for investors are higher borrowing rates for Spain and Italy.

They also are watching next month's election in Greece, which could put officials in power who oppose austerity measures required for bailout funding. That may prompt Greece to leave the union of countries that use the euro.

Some analysts believe Europe's unsettled financial and political issues will keep pressure on commodities until there is a clearer direction for the region's economy.