Nazi hunters from the Simon Wiesenthal Centre say they will continue to press for the extradition of an 89-year-old Perth man to Hungary for questioning over alleged war crimes, after another Federal Court decision in his favour on Friday.

Charles Zentai is accused of being one of three Nazi-backed Hungarian soldiers who assaulted and murdered Jewish teenager Peter Balazs in Budapest in November 1944.

In 2005, a Hungarian military judge issued an arrest warrant for Mr Zentai, alleging he captured and assaulted Mr Balazs over several hours before dumping his body in the Danube River....