Isis has claimed responsibility for bombings that left more than 300 people dead in Sri Lanka, releasing a video of the alleged attackers pledging allegiance to its leader.

In a statement released by its Amaq propaganda agency, the group said it was targeting citizens of countries bombings its territories and Christians.

"A security source told Amaq agency the perpetrators of the attack targeting the citizens of [US-led] coalition countries and Christians in Sri Lanka were Islamic State fighters," it said.

The wording of Isis's claim is similar to that for previous atrocities that were thought to be inspired by the group but not directly orchestrated by it.

It came after Isis supporters circulated unverified photographs claiming to show three of the suicide bombers who targeted churches and hotels on Easter Sunday.

They showed the men posing with a knife and guns in front of Isis's black flag, captioned with the names Abul Muktar, Abu Ubaida and Abul Barra.

A second and longer Isis statement released later on Tuesday called the atrocities a "blessed invasion" and said both suicide bombs and IEDs were used.

It named seven attackers using kunyas - including three matching the names used on the photos - which are Arabic war names frequently taken by Isis supporters who have fought for the group in Syria and Iraq.

Sri Lanka's prime minister told a press conference that some of the bombers had travelled abroad and returned home, but did not give further details.

Ranil Wickremesinghe warned there could be more bombs and militants "out there", adding: "We will be following up on Isis's claims, we believe there may be links."

Isis's statement claimed to detail which bomber attacked which target, and said the seventh man "clashed with police and killed three of them" as security forces approached a safe house in Dematagoda.

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Johnson initially floated the idea [UK spying on the president's 2016 campaign] in 2017 alongside suggestions that the CIA was responsible for the DNC hack rather than Russia, and general criticisms of the Obama administration. The suggestion was repeated by Fox News legal analyst Andrew Napolitano and the then White House press secretary Sean Spicer. Fury immediately followed across the pond, but was quickly abated when the administration distanced itself from the news report.

The issue cropped up again last November, when media reports emerged that British spy agency MI6 was fighting to prevent Donald Trump from publishing classified information regarding an FBI wiretap on one of his campaign advisers. MI6 reportedly opposed Trump's move because it would hamper intelligence-gathering sources and methods. Trump allies, however, said that the British were worried about being implicated themselves.

Trump has also recently retweeted claims that the UK had created the Russiagate scandal in order to push the US to take a hard-line stance against Moscow.

Testifying after the release of Special Counsel Robert Mueller's report, US Attorney General William Barr told a Senate subcommittee he believes some kind of "spying" had taken place, stressing that "spying on a political campaign is a big deal." While he later stated he did not believe any "improper surveillance" was carried out, he emphasized his concern over unspecified actions taken by the FBI.

U.S District Court Judge Royce Lamberth ordered Obama administration senior State Department officials, lawyers, and Clinton aides, as well as Priestap, to be deposed or answer writer questions under oath. The court ruled that the Clinton email system was "one of the gravest modern offenses to government transparency."

Priestap was asked by Judicial Watch to identify representatives of Hillary Clinton, her former staff, and government agencies from which "email repositories were obtained." Priestap responded with the following non-exhaustive list:

• Bryan Pagliano
• Cheryl Mills
• Executive Office of the President [Emphasis added]
• Heather Samuelson
• Jacob Sullivan
• Justin Cooper
• United States Department of State
• United States Secret Service
• Williams & Connolly LLP

Priestap also testifies that 48,982 emails were reviewed as a result of a warrant for Clinton email account information from the laptop of Anthony Weiner, who had been married to top Clinton aide Huma Abedin.

A complete copy of Priestap's interrogatory responses is available here. Priestap, is serving as assistant director of the FBI's counterintelligence division and helped oversee both the Clinton email and the 2016 presidential campaign investigations. Priestap testified in a separate lawsuit that Clinton was the subject of a grand jury investigation related to her BlackBerry email accounts.

Priestap was ordered to answer the written questions by United States District Court Judge Royce C. Lamberth when he ruled in January that Judicial Watch's discovery could begin in Hillary Clinton's email scandal. This action came in Judicial Watch's July 2014 FOIA lawsuit for:

• Copies of any updates and/or talking points given to Ambassador Rice by the White House or any federal agency concerning, regarding, or related to the September 11, 2012 attack on the U.S. consulate in Benghazi, Libya.
• Any and all records or communications concerning, regarding, or relating to talking points or updates on the Benghazi attack given to Ambassador Rice by the White House or any federal agency.