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A police van parked near where Lyra McKee was killed Friday in Londonderry, Northern Ireland. Photo: Charles McQuillan/Getty Images

The Police Service of Northern Ireland has reported 2 arrests in connection with the death of LGBTQ investigative journalist and author Lyra McKee, who was killed in Londonderry, Northern Ireland on Friday while covering riots that have followed ongoing Brexit proceedings, the Irish Times reports.

The bottom line: 2 men, ages 18 and 19, were arrested on Saturday under the Terrorism Act and have not yet been formally charged. Police said that a gunman fired shots toward police officers during the riots, which was also described by a reporter at the scene, per the BBC. Police are attributing Friday's violence to the New Irish Republican Army dissident group, which is not affiliated with the Provisional Irish Republican Army known for its role in the 1968-to-1998-era of the "Troubles,” per the New York Times.

The big picture: Some worry that Britain’s exit strategy may negatively impact "the openness and invisibility of the border once Northern Ireland has left the European Union," the Washington Post reports. Mckee's death and the violent turmoil that has arisen signify an alarming acceleration of unrest, reminiscent of challenges in Northern Ireland more than 20 years following the Good Friday peace agreement.

Go deeper

Bryan Walsh, author of Future
7 mins ago - Technology

AI is industrializing

Illustration: Sarah Grillo/Axios

Artificial intelligence is becoming a true industry, with all the pluses and minuses that entails, according to a sweeping new report.

Why it matters: AI is now in nearly every area of business, with the pandemic pushing even more investment in drug design and medicine. But as the technology matures, challenges around ethics and diversity grow.

Updated 1 hour ago - Politics & Policy

National Guard chief: Pentagon's "unusual" Jan. 6 restrictions led to 3-hour delay

William Walker, commanding general of the D.C. National Guard, testified Wednesday that a three-hour delay in approval for National Guard assistance during the Jan. 6 Capitol attack was exacerbated by "unusual" restrictions on his authorities by Pentagon leadership.

Why it matters: Walker testified that if Army Secretary Ryan McCarthy had not prohibited him in a Jan. 5 memo from using the National Guard's "Quick Reaction Force" without authorization, he would have "immediately" sent troops to the Capitol after receiving a "frantic call" from then-Capitol Police Chief Steven Sund.

2 hours ago - World

U.S.-Iran nuclear diplomacy is going nowhere fast

Illustration: Annelise Capossela/Axios

Iran's cool response to the Biden administration's push for diplomatic engagement, along with rising tensions in the region, makes clear that salvaging the 2015 nuclear deal may be far more difficult than many had anticipated.

The state of play: Both the U.S. and Iran have entered the diplomatic dance, but it seems to be moving in circles.