A French photojournalist was killed by a drone in eastern Ukraine on Friday, the Ukrainian military and international press associations said, saying that it was the first time in the war that a working journalist had been killed by a remotely piloted drone.

Antoni Lallican, a Paris-based photographer who won the 2024 Victor Hugo Prize for Committed Photography for his coverage of the war, was working alongside a Ukrainian photojournalist, Georgiy Ivanchenko, when he was killed.

Mr. Ivanchenko was seriously injured in the attack, the Ukrainian Association of Professional Photographers said in a statement.

President Emmanuel Macron of France issued a statement extending his condolences to Mr. Lallican’s family, saying the journalist had been “accompanying the Ukrainian Army on the resistance front” and was “a victim of a Russian drone attack.”

The exact circumstances surrounding the attack remain under investigation, but both reporters were wearing protective gear and body armor clearly identifying themselves as “Press,” the European and International Federations of Journalists said in a statement.

Sergiy Tomilenko, president of the National Union of Journalists of Ukraine, said the two men were working near Druzhkivka in the Donetsk region, where some of the most ferocious battles of the war are being waged.