Ms. Kuvshynova had worked for several weeks alongside Fox News’s crew in Ukraine. Foreign correspondents often rely on local journalists for a variety of critical roles, such as navigating an unfamiliar country and translating during interviews.
Fox News producers and correspondents described her as witty, brave and hardworking, with an interest in photography, music and the arts. “Her dream was to connect people around the world and tell their stories, and she fulfilled that through her journalism,” Ms. Scott wrote in a memo.
The director general of the U.N. Educational, Scientific and Cultural Organization, Audrey Azoulay, on Tuesday condemned the attack that led to the journalists’ deaths. “Journalists have a critical role in providing information during a conflict, and should never be targeted,” she wrote. “I call for the respect of international humanitarian standards, to ensure that journalists and media workers are protected.”
Micheal Martin, the prime minister of Ireland, where Mr. Zakrzewski was a citizen, also commented on the deaths. “We condemn this indiscriminate and immoral war by Russia on Ukraine,” he wrote on Twitter.
On Sunday, the American filmmaker and journalist Brent Renaud, 50, was shot and killed while reporting in a suburb of Kyiv.
Mr. Zakrzewski, who was based in London, had assisted Fox News in its efforts last year to extract its Afghan staff members from Afghanistan after the Taliban took control of the country.
“Pierre was a constant in all of our international coverage,” Jay Wallace, the president of Fox News, wrote in the memo. “I, like countless others, always felt an extra sense of reassurance when arriving on the scene and seeing him with camera in hand. The legacy of his positive spirit, boundless energy and eye for the story will carry on.”
Trey Yingst, another Fox News foreign correspondent who is reporting from Ukraine, posted a photograph on Twitter of himself and Mr. Zakrzewski.
