French authorities arrested Norwegian musician Kristian "Varg" Vikernes in central France on Tuesday, on suspicions that he was planning a “major terrorist act,” reports the BBC.

According to the French interior ministry, Vikernes was a “potential threat to society.” The arrest took place in central France, in Correze, after Vikernes’ wife legally bought four rifles.

Vikernes, who French authorities called a "Neo Nazi," had previously received a copy of mass murderer Anders Breivik’s manifesto.

Breivik killed 77 people, including several children, on an island near Oslo in December 2011. Breivik’s shooting spree earned him the maximum 21-year prison sentence in Norway.

Besides being a black metal musician known for his Burzum project, which he started in 1991, and a writer, Vikernes is also a convicted murderer. He was convicted in 1994 of stabbing a man to death in Oslo and burning down several churches.

He was released in 2009 and then moved to France with his wife, a French national.

Vikernes has written about Breivik’s actions on his official website, in December 2012, criticizing him for killing Norwegian nationals.