The Argentine authorities have published declassified documents about high - ranking Nazis who fled to the country .

Among them are doctor Josef Mengele, who conducted experiments on Auschwitz prisoners and was nicknamed the Angel of Death, concentration camp commandant Edward Roschman (nicknamed the Riga Butcher) and Gestapo officer Walter Kuchman, who died in Buenos Aires.

The government website contains more than 1,850 files of personal files, certificates, telegrams, newspaper clippings about arrests and the course of investigations.