Almost a year since the disappearance of 43 students tainted his administration's international image, the case has come back to haunt Mexican President Enrique Pena Nieto.
Experts from a regional human rights body investigating the disappearance of 43 students in Mexico complained that government delays in allowing them to interview soldiers could limit their work.
A German town mourned 16 teenagers who were among the 150 people killed in a plane crash in the French Alps as they returned from a school exchange in Spain.