In court documents filed Thursday, federal prosecutors argued that a three-judge panel of the 4th U.S. Circuit Court of Appeals correctly ruled last month that the government had proven its case against Dylann Roof
Al-Qaida leader Ayman al-Zawahri has appeared in a new video marking the 20th anniversary of the Sept. 11 attacks, months after rumors spread that he was dead.
France began the trial of 20 men accused in the Islamic State group’s 2015 attacks in Paris that left 130 people dead and hundreds injured.
An Afghan official says three children were killed in a drone strike that U.S. officials said struck a vehicle carrying Islamic State suicide bombers.
President Biden said Saturday’s retaliatory drone strike against ISIS-K in Afghanistan won’t be the last measure the United States takes against the group.
The Islamic State offshoot that Americans blame for Thursday's deadly suicide attacks outside the Kabul airport got its start six years ago with several hundred fighters who regarded the Taliban as too moderate. The group known as Islamic State Khorasan formed along the mountain border of Pakistan and Afghanistan.
The U.S. Justice Department said it intends to provide families of 9/11 victims with more information about the lead-up to the terrorist attacks in connection with a federal lawsuit seeking to hold the government of Saudi Arabia accountable.
Prosecutors said the New York woman and a co-conspirator researched old terrorist attacks and then taught each other the chemistry and engineering skills needed to build and set off explosives.
Prosecutors laid terrorism charges against a man accused of driving down and killing four members of a Muslim family in London, Ontario. The prosecution says Nathaniel Veltman's four counts of first-degree murder constitute an act of terrorism and prosecutors have upgraded those charges under section 83 of Canada's Criminal Code.
A 73-year-old from Pakistan who is the oldest prisoner at the Guantanamo Bay detention center was notified on Monday that he has been approved for release
The Department of Homeland Security says violent extremists may seek to exploit the easing of COVID-19-related restrictions across the United States to conduct attacks.
Many of the dead are between 11 and 15 years old, Afghan officials said.
Secretary of Homeland Security Alejandro Mayorkas plans to put a team together to begin an internal review of the Department of Homeland Security for possible threats of domestic violent extremism within the agency.
Akayed Ullah, the man whose pipe bomb mostly misfired in a crowded Manhattan subway station in 2017 was sentenced to life in prison on Thursday.
U.S. Border Patrol agents in California arrested two men in two months who turned up on the terrorist watch list.
The couple planned to travel to Yemen aboard a cargo ship in an attempt to stay away from law enforcement, according to a federal prosecutor.
Prosecutors say a Bangladeshi immigrant who set off a pipe bomb attached to his chest in New York City’s busiest subway station should face life in prison.
Two attackers have blown themselves up outside a packed Roman Catholic cathedral during a Palm Sunday Mass on Indonesia’s Sulawesi island, wounding at least 20 people.
Federal prosecutors may bring charges under a seldom-used federal law against members of white nationalist groups, such as the Proud Boys and Oath Keepers, that took part in January's Capitol siege.
The U.S. military is focusing on identifying extremist organizations in the United States that are trying to recruit members from within the armed forces. A top official compared the recruitment effort to that undertaken by international terrorist groups trying to lure the support of servicemembers.