Armed with a search warrant, a team of policemen showed up at Sakic's house, where two television crews, one from an Argentine network and one from CBS, had been holding a round-the-clock vigil at his doorstep.

Everyone assumed that Sakic was hiding elsewhere, but soon the policemen emerged from the house with him.

The Argentine interior minister, Carlos Corach, who commands the federal police force, said the police "knew all along where Sakic was, but did not arrest him until the extradition order from Croatia was duly validated by a local court."

On Friday of last week, Croatia's extradition request was heard in an Argentine court.

After the hearing, Sakic's lawyer said the former camp commander had agreed to the request, but did not elaborate.

Yugoslavia has also asked for his extradition, but that request was not addressed at the hearing.

Serbs, the majority population in Yugoslavia, appear to be eager to try someone who might have been responsible for the deaths of their countrymen.

Sakic was discovered after an Argentine television show aired an expose of him last month.

Sakic, 76, admitted in the broadcast that he had served as commander of the Jasenovac concentration camp, but he denied that anyone was killed there under his watch.