"U.S. citizens are strongly encouraged to maintain a high level of vigilance," the agency said on its website.
The FBI said Ayman al-Zawahri and Osama bin Laden coordinated the 9/11 attacks.
Border Patrol apprehended at least 23 people coming across the southern border whose names are on the terror watchlist in 2021, according to Customs and Border Protection (CBP) data obtained by Fox News.
Boston Marathon bomber Dzhokhar Tsarnaev's $1,400 COVID-19 stimulus payment can be used to help pay the millions of dollars he is ordered to pay his victims, a judge has ruled.
Saturday's attack marked the first known time that a suicide bomber has killed victims in eastern Congo, where an Islamic State group affiliate earlier this year took responsibility for a suicide bombing near another bar in Beni who had caused no other casualties.
FBI officials believe they have not captured all of the people responsible for the Pan Am bombing that killed 270 people, including 190 Americans in 1988.
The Paris Terror Attacks of 2015 live in the minds of the French every day, but especially on Nov. 13. Here’s a look back at what happened the night of the attacks.
While DHS said it had no credible information on a specific threat, the agency warns in its latest national terrorism advisory bulletin that mass gatherings for the upcoming religious holidays could be potential targets.
A senior al-Qaida leader was killed Friday in a U.S. airstrike, officials said.
ISIS says its members are responsible for a deadly suicide bombing on a Shiite mosque in southern Afghanistan.
Security guards at the Edward R. Roybal Federal Building in downtown Los Angeles stopped a truck on outside the building that was loaded with a cache of weapons.
Secretary of State Mike Pompeo says the United States has designated Cuba as a "state sponsor of terrorism."
Days after pro-Trump supporters stormed into the U.S. Capitol, Rep. Norma Torres recounted her experience being trapped inside the House Chamber to FOX 11's Elex Michaelson.
Wednesday marks five years since 14 people were killed and 21 others hurt when a married couple opened fire in a shooting massacre in San Bernardino.
Gunmen opened fire on people enjoying a last evening out in Vienna before a coronavirus lockdown Monday in a terror attack that left at least two dead — including one of the attackers — and 15 wounded, authorities said.
The Justice Department is preparing to announce charges against two men from Britain who joined the Islamic State and were part of a cell that beheaded Western hostages in Syria.
Police say that several people have been taken to hospital after the Saturday evening attack in the city’s Forbury Gardens Park and that person is in custody.
Police said they have secured the mall, and Public Health Minister Anutin Charnvirakul said there were no more bodies left inside. But he added, "we don't know whether there are any additional injuries or deaths or not." He did not say whether the shooter had been found.
On September 11, 2001, a total of 19 terrorists hijacked four airplanes, crashing two of them into the World Trade Center, one into the Pentagon and the fourth into a Pennsylvania field, killing thousands of Americans in the process and wreaking destruction that, in its aftermath, has continued to claim lives.
Oscar-nominated actor and GEANCO Foundation ambassador David Oyelowo discusses the David Oyelowo Leadership Scholarship for Girls, which provides scholarships for girls impacted by terrorism.