The report shot by Ms. Laszlo also showed some of the migrants rounded up by the police after their attempted escape chanting, “Allahu Akbar,” or “God Is great.” In an interview with The Washington Post on Monday, the Roman Catholic Church’s prelate in southern Hungary cited that chant as evidence that Muslims fleeing war in the Middle East should be kept out. “They’re not refugees. This is an invasion,” Bishop Laszlo Kiss-Rigo said. “They come here with cries of ‘Allahu akbar.’ They want to take over.”

The bishop, whose remarks came one day after Pope Francis called on Catholics to take in refugees, said that he was “in total agreement with” Hungary’s prime minister, Viktor Orban, who wrote last week that migration from Muslim lands undermined efforts “to keep Europe Christian.”