Four assault rifles used in the deadly Paris attacks were allegedly purchased from a trafficker in Germany, newspaper Bild reported Friday.

Quoting documents from the Stuttgart prosecutor's office, the newspaper said two AK47s and two Zastava M70s were sold on November 7 by the arms dealer to a customer in Paris.

"French investigators believe that the weapons were allegedly used in the attacks in Paris," said Bild.

The Stuttgart prosecutor was not immediately available for comment.

According to Bild, German police on November 16 arrested a 34-year-old man named Sascha W. from the southern city of Magstadt on suspicion of the illegal weapons trade.

The suspect is accused of having hawked the weapons on Darknet -- a hidden network used for both licit and illicit ends -- using the name "DW Guns".

Four emails on his smartphone show that he sold "four Kalashnikovs assault rifles to an Arab in Paris", added the newspaper.

During a raid at the suspect's house, police also found 16 other firearms, Bild said.