The jihadi group said the attacker was inspired by its calls to target "coalition" countries.
The most wanted extremist in the world had not spoken since November 2016.
Moscow denied the report announced via the radical Islamist group’s Amaq News Agency.
Until the last minute, most passengers believed the hijacking was for real.
The British men included Jihadi John, executioner of three Americans, and Junaid Hussain, ISIS's cyber chief.
Chad has been fighting Boko Haram and Al-Qaeda for years, but Trump says it’s not playing ball with Washington.
Reams of geo-location data are being revealed via the photo-sharing app.
The president is set to roll back limits on strikes and commando raids imposed under Barack Obama.
Western governments have called on the search giant to do more to tackle extremist content.
A monitoring group says an Arab-Kurdish coalition has almost taken the whole city.
President Donald Trump appears determined to follow through on his promise to “bomb the sh*t out of ISIS,” regardless of how many civilians are killed along the way.
The 509 women and 813 children are from 13 countries across Europe, Asia and North America.
If ISIS was behind Friday's bombing of the London metro, it would be the group's fourth attack in the U.K. this year.
Iraq has separated female foreign fighters and detained them at a facility near Mosul.
The jihadist group is cranking up its official output as its ranks and morale drop.
Father Uzhunnalil was kidnapped from a home for the aged and disabled in the Yemeni city of Aden.
Busloads of jihadis had been stranded in the Syrian desert.
The ruling could set a precedent for other foreign fighters caught in the operation to retake Mosul.
Ahead of Congress vote, Senator Rand Paul says the U.S. government wants "unlimited war" without a legal basis.
The jihadi group opposes the country’s claim to be the world’s true Islamic state.