A man who died after taking four people hostage at a Texas synagogue has been named by the FBI as 44-year-old British national Malik Faisal Akram.

Akram began a standoff with police after disrupting a religious service at the Congregation Beth Israel in Colleyville, in the Dallas-Fort Worth metropolitan area, and taking hostages including the rabbi. He released one hostage unharmed after six hours.

More than 10 hours after the siege began, members of the FBI’s hostage rescue team stormed the synagogue to free the three remaining hostages. They were said to be “alive and well” after the siege had been brought to an end.

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On Sunday, Joe Biden said the gunman had used weapons he got off the street to commit “an act of terror”.

The US president, who was visiting a food bank in Philadelphia, said: “I don’t have all the facts, nor does the attorney general – but allegedly the assertion was he got the weapons on the street.

“He purchased them when he landed and it turns out there apparently were no bombs that we know of … Apparently he spent the first night in a homeless shelter. I don’t have all the details yet so I’m reluctant to go into much more detail.”

Reports suggested that a live stream of the Shabbat service, available on Facebook during the standoff until it was cut off at 2pm local time, captured audio of a man talking in an English accent.

On Sunday, a Foreign, Commonwealth and Development Office (FCDO) spokesperson said: “We are aware of the death of a British man in Texas and are in contact with the local authorities.”

A spokesman for the Metropolitan police in London said counter terrorism policing officials were liaising with their US counterparts over the incident.

On Sunday the British foreign secretary, Liz Truss, condemned the incident in a statement posted on Twitter. “My thoughts are with the Jewish community and all those affected by the appalling act in Texas. We condemn this act of terrorism and antisemitism,” Truss said. She added: “We stand with US in defending the rights and freedoms of our citizens against those who spread hate.”

  • Associated Press contributed to this report