Publication at a sensitive time: according to the French Sunday newspaper "Journal du Dimanche", a 62-year-old man has been questioned and arrested on suspicion of terrorism.
He is said to have planned a violent action against Notre-Dame Cathedral in Paris, the paper reports in its Easter edition.
The Egyptian was arrested and charged at the beginning of March.
The police suspect that the man is connected to the terrorist organisation "Islamic State", according to the report.
Minister of The Interior Gerard Darmanin had declared the highest terror alert level for Easter and recommended that the authorities post a police officer outside every Christian church.
According to Prime Minister Gabriel Attal, a total of 45 attack plans have been foiled since 2017. Religious buildings are considered to be prime targets for jihadists.
Notre-Dame Cathedral in Paris is one of the most famous buildings in the world.
The Gothic episcopal church was severely damaged in the devastating fire on 15/16 April 2019.
The wooden roof truss from the Middle Ages, parts of the vaulted ceiling and the ridge turret from the 19th century were destroyed.
Its reopening is planned for the end of 2024.