Laszlo Csatary allegedly persecuted opponents of the pro-Nazi Hungarian regime that ran the town of Kosice during World War II.

BBC: Slovakia charges Hungarian Nazi crimes suspect Csatary

The Nazi-hunting Simon Wiesenthal Center accuses Mr Csatary of involvement in the deportation of 15, 700 Jews from Kosice to the Auschwitz death camp.

BBC: Slovakia charges Hungarian Nazi crimes suspect Csatary

He insists that he was merely an intermediary between Hungarian and German officials in Kosice and that he was not involved in war crimes.

BBC: Slovakia charges Hungarian Nazi crimes suspect Csatary

Mr Shuster is a benign populist who has been a dynamic mayor of Kosice, a pretty town close to the country's eastern border with Ukraine.

ECONOMIST: Slovakia

Kosice - called Kassa at the time - was the site of the first Jewish ghetto established on Hungarian territory, following the German occupation of the country in 1944.

BBC: Slovakia charges Hungarian Nazi crimes suspect Csatary

Csizsik-Csatary served as a senior Hungarian police officer in the city of Kosice, which is now in Slovakia but was under Hungarian rule in the 1940s, the center said.

CNN: Nazi war crimes suspect arrested in Hungary