Published: May 16, 2010 6:07 PM EDT

ATHENS, Greece (AP) - Greek Prime Minister George Papandreou is not ruling out taking legal action against U.S. investment banks for their role in creating the spiraling Greek debt crisis.

Papandreou told CNN on Sunday that "I wouldn't rule out" going after the U.S. banks.

The government, as well as many Greeks, have blamed international banks for fanning the flames of the debt crisis with comments about Greece's likely default.

The Greek leader also says a parliamentary investigation will soon examine the rapid swelling of Greece's debt and the country's banking practices.

The European Union and the International Monetary fund have approved a euro110 billion ($136 billion) bailout package for Greece.