Two more suspects have been arrested in Mexico in the January slaying of 15 people at a house party in Ciudad Juarez, officials said.
With this week's arrests of Santiago Espinoza Martinez and Ricardo Salcido Lara, nine people have now been detained in connection with the January 31 slayings of the 15 party-goers, most of them students with no known ties to organized crime. The killings drew outrage across Mexico.
The Mexican military arrested four suspects in March. Three other suspects were arrested in February and one was killed in a shootout with police shortly after the slayings.
Officials did not say Wednesday what role the two latest suspects may have had in the slayings.
Espinoza Martinez, known as "el Chago" or "el Tres," and Salcido Lara, alias "el Bambi," also are accused in the unrelated killing of a federal police officer last week and the wounding of four others, said the Coordinated Chihuahua Operative, the joint federal and local anti-crime agency in the state.
Authorities said they also are investigating whether the two men are connected with the slayings of six people - including a member of the U.S. military - at a local bar and the killings last week of two other men.
The two suspects were in possession of two handguns when arrested, officials said Wednesday.
The January killings are thought to have been the result of bad intelligence by a cartel and the gang that carried out the shootings.