The parents of 43 missing students began a protest tour of Mexico, rejecting claims their sons were slaughtered in a crime rattling the nation and its leaders.
Mexico's president left on a six-day trip to China and Australia amid angry protests over the suspected massacre of 43 college students by a gang allied with corrupt police.
Gang suspects have confessed to killing 43 missing Mexican students, burning their bodies for 14 hours and tossing their charcoal-like remains in a river, authorities said, in a case causing national revulsion.
Thousands of protesters swarmed Mexico City to demand the safe return of 43 missing students after authorities arrested the main suspects in the disappearance.
Mexican authorities have captured the suspected leader of the Guerreros Unidos gang, which was allegedly involved with corrupt police in the disappearance of 43 students.
Protesters occupied three town halls in southern Mexico to demand the safe return of 43 students who disappeared after gang-linked police attacked them.
Mexico came under growing international pressure to solve the disappearance of 43 students who vanished after they were attacked by police linked to a drug gang.
Briyar Kamal, a 24-year-old Kurdish student, but instead of relaxing during his summer holiday he is fighting jihadists who have overrun swathes of Iraq.
Kazakh student Dias Kadyrbayev has formally pleaded guilty to obstruction of justice and conspiracy to obstruct justice in Boston bombings case two weeks before the trial.