Ex-Mexican President Under House Arrest

This is a September 1994 photograph of Luis Echeverria, who served as president of Mexico from 1970 to 1976. A Mexican court issued a house-arrest warrant Friday, June 30, 2006, for former President Luis Echeverria on charges of genocide in a 1968 student massacre, his attorney told The Associated Press. It was the first time an arrest warrant of any sort has been issued against a former Mexican president. (AP Photo/Jose Luis Magana, File) (Jose Luis Magana - AP)

MEXICO CITY -- Former Mexican President Luis Echeverria was placed under house arrest Friday on genocide charges stemming from a 1968 student massacre, an unprecedented move coming just two days before the country elects a new president.

A state investigator formally placed the 84-year-old Echeverria under arrest as crowds of reporters waited outside his ivy-covered Mexico City mansion. It was the first time a former Mexican president has been arrested.

"My client is mortified," Echeverria attorney Juan Velasquez told reporters. "Nobody wants to be served an arrest warrant, especially one for genocide."

Echeverria was interior secretary, a powerful position overseeing domestic security, when Mexican troops ambushed mostly peaceful student protests at Mexico City's Tlatelolco Plaza on Oct. 2, 1968, just before the capital hosted the Olympics. Officially, 25 people were killed, though human rights activists say as many as 350 may have died.

Special prosecutors say they have reviewed military documents indicating 360 sharpshooters fired from buildings surrounding Tlatelolco Plaza. The attack is considered one of the darkest moments of modern Mexican history.

At his home, Echeverria calmly signed the document recognizing the arrest warrant, which will be enforced by federal agents, said Jose Manuel Luis Jimenez, the investigator for Special Prosecutor Ignacio Carrillo.

The former president's lawyer said Echeverria was innocent and that the arrest warrant was timed to influence Sunday's closely fought presidential vote.

"Obviously, this is very convenient for some parties during the election season," Velasquez said.

Echeverria was placed under house arrest because a 2004 law allows judges to keep elderly suspects out of overcrowded jails.

Echeverria's Institutional Revolutionary Party, or PRI, was trailing in third place in pre-election opinion polls. Ruling party candidate Felipe Calderon is locked in a tight battle with leftist Andres Manuel Lopez Obrador, a former Mexico City mayor.

Prosecutors had been trying to convince Mexican courts to authorize Echeverria's arrest, but previous attempts were blocked by the courts.

Special prosecutor Carrillo, appointed by outgoing President Vicente Fox, brought criminal charges against Echeverria for his alleged involvement in the killings of dozens of students in two separate Mexico City protests: in 1968, when he was Mexico's interior secretary, and in 1971, when he was president.