Zawahiri says ISIS seeks to split the world's jihadis in his latest attempt to combat ISIS's propaganda machine.
Authorities detained relative of Cherif Kouachi in Turkey on his way to the war-torn country.
Police named the first attacker as 19-year-old Adel Kermiche, who was wearing an electronic tag.
Jihadi chatter centers on attacks against athletes that will gain media attention worldwide.
Hamza Bin Laden may help encourage younger recruits to join Al-Qaeda.
Washington considers using Moscow's leverage to halt Assad's strikes against Syrian rebels.
She could soon be charged in connection with the deadliest mass shooting in modern U.S. history.
The radical Islamists have lost a town east of Sirte as pro-government forces advance from the west.
Despite calling for unity, Ayman al-Zawahri called Islamic State fighters 'extremists' and 'renegades.'
Amid the celebrations in Derna, schools are reopening and people are returning to work.
Jihadi group says pair were killed for "practicing and promoting homosexuality."
The claim has not been independently confirmed and civilian casualties are unknown.
Sunday's airstrikes by Gulf Arab states were in coordination with a ground offensive further west.
The militant group now controls at least 60 percent of the besieged Palestinian camp in Damascus.
A declassified U.S. government document obtained by an independent research group suggests it was.