A special police unit in El Salvador has moved a former president to prison to await trial on charges of embezzlement and illicit enrichment.
Police assistant director Howard Cotto said on Friday that a judge revoked former president Francisco Flores' house arrest and ordered him to be held in prison.
Flores was taken to a prison in the capital San Salvador on Thursday.
Flores is accused of embezzling $US5.3 million ($A5.73 million) while president.
He is also charged with mismanaging $US10 million that was donated to El Salvador by Taiwan's government during his presidency in 1999-2004.
He has said he received the money personally from Taiwan and handed it over to the intended state projects, but he has offered no proof of the transfer.
