Mexico is investigating the security roles of two U.S. officials killed in a crash, focusing on potential violations of national security laws.
A Canadian tourist was killed and six others injured in a shooting at Mexico's Teotihuacan pyramids, with the gunman later dying by suicide.
Four drug investigators, including two Americans, died in a crash on a dangerous mountain road in Chihuahua, Mexico.
Mexico's President faces growing pressure to address the crisis of over 133,000 missing people.
Mexico's World Cup security spending draws criticism as families of the disappeared feel neglected in the search for their loved ones.