Laszlo Csatary, who the Simon Wiesenthal Center says has been found in Hungary, is number one on the group's list of Nazi war criminals known to be still alive and at large almost seven decades after World War II.
Csatary, who is now 97, is listed by the Vienna-based Nazi-hunters as having "helped organise the deportation to Auschwitz of approximately 15,700 Jews" from Nazi-occupied Czechoslovakia in early 1944.
The top two names on the list -- Alois Brunner and Aribert Heim -- are widely suspected to be dead.
The following are the five top remaining names on the Simon Wiesenthal Center's list of surviving Nazi war criminals as of April 1 this year, excluding Klaas Carel Faber, who died in May.
1: Laszlo Csatary, Hungary
Served as a Hungarian police chief in Nazi-occupied Czechoslovakia and helped organise the deportation of Jews from the town of Kosice. Accused of being instrumental in sending thousands to death camps.
On Sunday, the centre said it had submitted new evidence on Csatary's case to the Hungarian authorities.
2: Gerhard Sommer, Germany
A former German SS officer who was involved in the massacre of 560 civilians in August, 1944 in Italy. Since 2002 he has been under investigation in Germany, but no criminal charges have yet been brought against him, the centre says.
3: Vladimir Katriuk, Canada
Served in a Ukrainian battalion which murdered Jews and other civilians in Belarus during the war. Escaped to Canada after the war, and has lived there since. Was stripped of his Canadian citizenship in 1999, but it was reinstated in 2010.
4: Karoly Zentai, Australia
Took part in the persecution and murder of Jews in Budapest in 1944. Escaped to Australia after the war, and Hungary asked for his extradition in 2005. A court halted the extradiction but an appeal is pending.
5: Soeren Kam, Germany
An officer in an SS division during the war, he took part in the murder of an anti-Nazi newspaper publisher in Denmark. Germany has refused to extradite him to Denmark.