Thousands marched in Mexico City Saturday to mark the first anniversary of the disappearance of 43 students in a murky case involving corrupt police that has haunted President Enrique Pena Nieto.

Parents and other relatives of the missing led the "March of National Indignation" from an area near the Los Pinos presidential residence, carrying photos of their loved ones and shouting slogans decrying the official account of their fate.

Parents of dozens of missing students called on Mexican authorities Tuesday to investigate the military, while prosecutors said no soldiers were involved in the case that has shocked the nation.

Vidulfo Rosales, a human rights lawyer representing the families, said 10 students, several police officers and members of a drug gang have implicated soldiers in the abduction of 43 aspiring teachers in September.

Students and relatives of 43 missing aspiring teachers stormed a Mexican military base on Monday in the city where they vanished, prompting soldiers to repel them with tear gas.

The protesters traveled to Iguala, in the southern state of Guerrero, to demand to search the barracks because they believe the missing young men may have been hidden there.

Anti-riot police stormed Mexico City's historic center to remove striking teachers on Friday, using water cannons to clear the area while protesters responded with firebombs.

Hundreds of federal officers broke through barricades, chasing out a few hundred protesters who had disobeyed a deadline to vacate the Zocalo plaza ahead of the nation's independence day celebrations this weekend.

A couple, their two teenaged children and a friend were slashed to death in the Mexican city of Zapopan, police said Sunday.

Police found "the remains of five people, two adults and three minors" all of whom had had their necks slashed, Ernesto Ramos, police commander in the city of 1.2 million, told AFP.

A Canadian woman held in connection with an audacious bid by a son of ex-Libyan strongman Moammar Gadhafi to smuggle himself into Mexico has been formally charged, along with three alleged accomplices, an official said Wednesday.

Mexico's Assistant Attorney General Jose Cuitlahuac Salinas said authorities charged Cynthia Vanier, a Dane and two Mexicans on January 28 for attempted trafficking of undocumented people, organized crime and falsifying official documents.