FBI agents investigating a suspected terrorist incident at a Texas synagogue said the suspect appeared to have a British accent and officials will be liaising with the Metropolitan Police during the investigation.
Four hostages taken by the man who stormed the building 'armed with backpacks of explosives' have been released after the man was shot dead.
He held the hostages, including Rabbi Charlie Cytron-Walker, trapped inside the Congregation Beth Israel in Colleyville, for about 10 hours before the hostages were reported free and safe.
Dramatic footage revealed the moment two hostages ran out of the temple. The suspect can be seen popping out of the door as he chases after them with a gun, but he quickly retreats back inside, closing the door after spotting the nearby SWAT team.
Dozens of agents then breach the synagogue as gunshots can be heard firing off.
FBI special agent Matt Desarno said the agency's Hostage Rescue Team, who were flown in from Quantico in Virginia, entered the synagogue at around 9pm CST, freed the hostages and killed the suspect.
He added that the investigation is ongoing and they will be working with London police on the case. The suspect appeared to have a British accent when he spoke during the synagogue's livestream.
Colleyville Police Chief Michael Miller said bomb technicians are still active at the scene as police investigate the suspect's claims of having explosives inside the temple.
Officials said they have identified the suspect, but will not release his name yet or motive.
The suspect had demanded the release of convicted terrorist Aafia Siddiqu - known as Lady Al Qaeda - who, police say, he referred to as his 'sister.'
However, a lawyer representing the woman's brother denied he was involved after networks reported it was him.
Siddiqui was jailed for 86 years after being arrested in Afghanistan in 2008 for the attempted murder of a U.S. Army captain. The Pakistani-born neuroscientist was found with two kilos of poison sodium cyanide and plans for chemical attacks on New York's Brooklyn Bridge and the Empire State Building.
The assailant told a SWAT team from the Texas synagogue: 'If anyone tries to enter this building, I'm telling you…everyone will die.'
He was caught on the synagogue's Sabbath livestream, before it was cut off at 2pm CST, saying: 'I'm going to die. Don't cry about me'
'Are you listening? I am going to die,' he repeated over and over.
The terrorist spoke with a New York City rabbi earlier Saturday who was being interviewed by the FBI. He bizarrely demanded the female rabbi release Aafia.
Dallas Mayor Eric Johnson and New York City Mayor Eric Adams had deployed additional patrol units at synagogues as did other major cities, like Los Angeles and Washington, D.C. Police say there is no current threat to the general public.
One of the hostages at the Congregation Beth Israel in, Colleyville, Texas, was released and taken to his family. Authorities have said all hostages are now out and safe after the terrorist was shot
FBI special agent Matt Desarno confirmed that the suspect was dead and that all hostages were released safely and uninjured after the agency's elite Hostage Rescue Team breached the temple
A SWAT team was set up by a nearby middle school as the hostage situation dragged on for eleven hours
The SWAT team was on standby as the FBI spoke with the suspect and investigate his background
Authorities were in negotiations with the suspect for about 10 hours
There were four hostages inside the synagogue, including the temple's rabbi. One hostage has been released
Rabbi Charlie Cytron-Walker (right) is one of four being held hostage by a man claiming to be the brother of convicted terrorist Aafia Siddiqui (left) known as Lady Al Qaeda
Police are blocking roads near the temple and nearby residents have been evacuated as night falls
Armored vehicles are at the scene where the assailant claims to have bombs as the FBI attempts to diffuse the situation
Law enforcement have also gathered at the Colleyville Elementary School to help evacuate local residents
Local and federal authorities are working together to try and free all four hostages safely
The standoff is taking place at the Congregation Beth Israel, in Colleyville, just 27 miles from Dallas
Siddiqui, who was a biology major at MIT, said in 1993 that she wanted to do 'something to help our Muslim brothers and sisters' even if it meant breaking the law.
She jumped to her feet and 'raised her skinny little wrists in the air' in a display of defiance that shocked her friends.
An in-depth account of her journey to infamy also reveals that she took a National Rifle Association shooting class and persuaded other Muslims to learn how to fire a gun.
Siddiqui lied to her husband and after they wed over the phone he was stunned to discover she was just marrying him for his family's connections to better enable her to wage jihad.
Two handout photos of terror suspect Aafia Siddiqui released by the FBI in May of 2004
She was arrested in Afghanistan in 2008 by local forces who found her with two kilos of poison sodium cyanide and plans for chemical attacks on New York's Brooklyn Bridge and the Empire State Building
Siddiqui, a mother-of-three, eventually got her twisted wish and became the most wanted woman in the world by the FBI.
She was handed to the Americans and convicted of attempted murder in a U.S. court in 2010.
But her hatred for the U.S. was so strong that during her interrogation she grabbed a rifle from one of her guards and shot at them shouting: 'Death to Americans'.
A 2014 Boston Globe profile of Siddiqui's time in Boston sought to answer what happened during her 11 years as a student in the U.S.
Something happened to radicalize an intelligent and devout woman who not only graduated from MIT but also got a doctorate in neuroscience from Brandeis University.
At MIT she made few friends and was remembered as intelligent, driven and a regular at the Prospect Street mosque, which would later be attended by alleged Boston Marathon bomber Tamerlan Tsarnaev.
She wore long sleeves and the hijab and was seen as 'very sweet' for a former roommate at her all-female dorm.
The focus of her life was the Muslim Student Association but things appear to have changed with the start of the Bosnian War, which seems to have been the beginning of her radicalization.
Siddiqui became involved with the Al-Kifah Refugee Centre, a Brooklyn-based organization which is thought to have been Al Qaeda's focus of operations in the US.
Terrorism expert Evan Kohlmann said: 'Aafia was from a prominent family with connections and a sympathy for jihad. She was just what they needed.'
In 1993 as she and some friends debated how to raise money for Muslims being killed during the Bosnian War, one of them joked that they didn't want to go on the FBI's Most Wanted List.
Waqas Jilani, then a graduate student at Clark University, said: 'She raised her skinny little wrists in the air and said: 'I'd be proud to be on the Most Wanted list because it would mean I'm doing something to help our Muslim brothers and sisters'
'She said we should all be proud to be on that list'.
Jilani added that Siddiqui said in her speeches that Muslims should 'get training and go overseas and fight'.
He said: 'We were all laughing like, 'Uh-oh, Aafia's got a gun!'
'Part of it was because she was such a bad shot, but also because she was always mouthing off about the U.S. and the FBI being so bad and all.'
Siddiqui married Mohammed Amjad Khan, the son of a wealthy Pakistani family, in a ceremony carried out over the phone before he flew to Boston.
But upon arrival he discovered that far from being the quiet religious woman he had been promised, her life was very different.
He said: 'I
