Australia, Hungary and Lithuania are failing to investigate and prosecute suspected Nazi war criminals largely due to a lack of political will, the Simon Wiesenthal Center said Thursday.

The Nazi-hunting group said the same holds true for Croatia, Estonia, Latvia and Ukraine, adding all countries in question face no legal obstacles in bringing suspects to justice.

The findings were published in the center's annual report, which graded the investigation and prosecution efforts of countries around the world between April 2007 and March 2008.