"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.
Congregation Beth Israel is getting ready to welcome members back nearly three months after a terrorist attack.
Mohammad Ahmad al-Qahtani was flown back to Saudi Arabia, to a treatment facility.
Authorities say Malik Akram contacted Henry Williams looking to buy methamphetamine, cocaine and a machine gun with numerous bullets. He explained he was looking to intimidate someone who owed a debt. Federal investigators confirmed the gun, which was stolen, had been fired during the standoff in Colleyville and was recovered at the scene.
There are new warnings about potential violence aimed at places of worship, government offices and more. The leader of a North Texas synagogue who was taken hostage believes the country needs to listen to that warning.
Henry "Michael" Williams was charged with being a felon in possession of a firearm after authorities say he sold the weapon that Maisal Akram used to hold a rabbi and three others hostage for hours.
The FBI was more emphatic on Friday that last weekend’s act of terrorism at a Colleyville synagogue was also a hate crime. They said no other people have been arrested locally, though they think they know everyone he’d been around. However, they still don’t know how Akram got the gun he used to take the synagogue members hostage.
In the last phone call he made to his family, Malik Akram spewed venom against Jews, cursing Jews and America. He said he was not giving up and that he had prayed about this for two years and was opening the doors to further attacks.
The gunman who held several people hostage at a North Texas synagogue spent several weeks in the area before Saturday's attack. He stayed at a hotel in Irving and two homeless shelters. The driver who dropped him off at one shelter is a key part of the investigation.
The rabbi of a Colleyille synagogue where a gunman took hostages during livestreamed services said Monday that he threw a chair at his captor before escaping with two others after an hourslong standoff.
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.
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.
The Supreme Court sounds ready to reinstate the death penalty for convicted Boston Marathon bomber Dzhokhar Tsarnaev.
The Taliban have ruled out cooperation with the U.S. to contain extremist groups in Afghanistan.
A private vigil is being held Friday night in memory of a Garland Lyft driver who was murdered earlier this week.
Imran Ali Rasheed, 32, died after Plano police officers returned fire Sunday. Officials believe his attack on Plano PD headquarters may have been inspired by terrorists.
The United States military struck back at the Islamic State on Saturday, bombing an IS member in Afghanistan less than 48 hours after a devastating suicide bombing claimed by the group killed as many as 169 Afghans and 13 American service members at the Kabul airport.
One of the 13 U.S. service members killed in a suicide bombing at the Kabul airport in Afghanistan was a Marine from Laredo.
The Proud Boys is a far-right, male chauvinist extremist group known for engaging in violent clashes at political rallies. Canada is the first country to designate them as a terrorist entity.