A Chilean judge has denied bail to ex-Peruvian president Alberto Fujimori, who is awaiting a ruling on his extradition to his home country.
Supreme Court Judge Orlando Alvarez said Mr Fujimori must remain at a police academy where he has been detained since his arrest on Sunday.
The former president, 67, had flown to Chile from his current home in Japan.
He is wanted in Peru on charges of corruption and human rights abuse, but denies any wrongdoing.
He faces a long jail sentence if sent back.
Calls for fairness
A high-level Peruvian delegation is in the Chilean capital, Santiago, for extradition talks.
Profile: Alberto Fujimori
But Chile says the request will have to run its course through the courts. Human Rights Watch has urged the Chilean government to hold fair and rapid extradition proceedings for Mr Fujimori.
The New York-based group said it would be up to the courts to decide whether his days of avoiding justice were over.
The former president received Japanese citizenship after fleeing Peru in 2000. Tokyo has repeatedly turned down requests from Lima for his extradition.
The Japanese government said on Tuesday that it had asked Chile to treat him fairly.
Mr Fujimori has vowed to run for the Peruvian presidency next April despite being barred from holding public office until 2010.
Complicating factors
Mr Fujimori arrived on a surprise visit to Chile in what he said was part of his bid to return to Peruvian politics.
Although Peruvian warrants for his detention were thought to be invalid in Chile, a judge ordered his arrest after Peru lodged an extradition request.
A delegation led by Peruvian Interior Minister Romulo Pizarro has been meeting Chilean officials to discuss the steps which have to be taken by Peru in its request.
Even though Chile and Peru have had an extradition treaty for more than 70 years, it is not clear if arrest warrants issued by Interpol are legally binding in Chile.
The BBC's James Painter says another complicating factor is that Mr Fujimori's arrest comes at a time of worsening relations between Chile and Peru in a dispute over their sea border.
The Chilean government may be reluctant to do Peru any favours, he adds.
Correspondents say the former president's arrival in South America was a surprise for both the Chilean and Peruvian governments.
Mr Fujimori had so far preferred to conduct his unofficial electoral campaign from Japan, where he has been living in self-imposed exile.
Mr Fujimori - whose parents were originally from Japan - was Peru's president from 1990 to 2000.
The former president has been accused of involvement in the killing of 25 suspected members of the Shining Path guerrilla group by death squads, and also faces corruption charges.
Mr Fujimori denies all charges against him and believes he can win the vote. He was recently given a new Peruvian passport.
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