The arrests in Paris were in connection with the theft this month of gold worth about 1.6 million euros from a Zurich-bound Air France flight.
The mother, who made a tearful appeal for her missing five-year-old daughter, has admitted the girl is dead after she and four others were arrested.
Managers of former meat processing firm Spanghero detained for questioning as authorities continue inquiry into the mislabeling of beef as horse.
French and Spanish police announce arrests of 75 alleged members of a gang smuggling Chinese citizens into Europe and the US.
Those detained during a series of raids in the Paris region were suspected of planning terrorist acts on well-known figures in Franc.
A second person has been arrested in Paris in connection with the apparently random killings near Marseille by a 19 year-old gunman.
French police arrest 16 youths suspected of holding up a suburban train near Paris in March and robbing passengers of valuables.
A man and a woman suspected of criminal links with Mohamed Merah, who shot dead seven people in and around Toulouse in March, have been arrested.
Woman arrested with her boyfriend in Macon is described as leader of the ETA Basque terrorist movement's killer squads.
French police investigating 12 men in connection with a suspected Islamist terrorist gang have found bomb-making materials in a garage near Paris.