Hostages freed in ISIS oil field attack

Four hostages -- employees of the Iraqi North Oil Company -- were taken captive after four attackers, believed to be wearing suicide vests, stormed the Bai Hassan oil field northwest of Kirkuk on Sunday, the source said.

One of the attackers blew himself up when security forces responded. The other attackers were later killed by security forces.

The ISIS-affiliated Amaq news agency released a statement claiming responsibility for the attack, which was widely circulated by the terror group's supporters on social media networks.

Yemen rebels release foreign hostages, including 2 Americans

Houthi officials and officials at the airport in the rebel-held capital, Sanaa, speaking on condition of anonymity because they were not authorized to brief reporters, said three Americans, two Saudis and a British national detained earlier this year were released and flown to Oman.