Risk aversion drove copper to a three-week low on Monday, as investors fretted about the potential impact of fraud charges against Goldman Sachs, Wall Street's most influential bank and a leading commodities player.

Investors were seen parking their cash into the safety of the U.S. dollar, which tends to make dollar-priced metals more expensive for non-U.S. investors, as the combination of the Goldman news and lingering concerns about Greece's debt compounded the shaky market sentiment.

On the London Metal Exchange, copper for three months delivery CMCU3 touched a session low of $7,610.25, its weakest since March 29, before ending at $7,696 a tonne from $7,763 on Friday, when it lost over 2 percent of its value.

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