American investor George Soros said he would like to see Washington put $300 to $600 billion more into the $700 billion U.S. economic bailout package, the German magazine Der Spiegel reported in an advance of Monday's edition.

The weekly quoted the billionaire as saying that the United States needs a bigger economic program than the existing Troubled Asset Relief Program package to accommodate American cities and states with the money they need to get out of the financial turbulence, and that the country needs an infrastructure investment program.

Soros also criticized U.S. Treasury Secretary Henry Paulson for not seeing the economic crisis earlier.