It's another aviation disaster for Iran, which for years was barred from buying airplane parts for needed maintenance due to Western sanctions over its nuclear program.
The national security adviser's statement, coming after 13 indictments in Robert Mueller's probe, shows a split in official views on interference in the 2016 election.
All victims were on the ground, spending the night in a field after a magnitude 7.2 temblor struck the area. The military chopper was carrying officials surveying damage.
Residents flee into the streets of Mexico City and southern Oaxaca state as the shaking ignites fear among survivors of a 2017 temblor that killed 228 in the capital.
Senators deal President Trump an especially galling defeat as more than a quarter of fellow Republicans abandon him on an issue that helped elect him.
In a country where public school systems are failing, a growing nonprofit organization shows students and teachers how to revitalize learning.
His resignation, which follows years of corruption scandals, comes after the ruling party instructs him to leave office or face a no-confidence vote.
Researchers are painting a dark picture. One new study involves warming of the planet, another deals with heat extremes and a third underlines what will happen if we do not reduce carbon emissions.
From the onset of his presidency, Donald Trump has made it clear that cheap, abundant domestic energy derived from fossil fuels would be the crucial factor in his total-mobilization approach to global engagement.