Spain's Civil Guard and National Police arrested the eight men on suspicion of being part of an Al Qaeda network recruiting jihadists from Ceuta and Morocco to fight in countries such as Syria.
Madrid's National Court said in a written ruling last month that at least five of those sent by the group to Syria had died there carrying out suicide attacks.
Among the suspects the court named Karim Abdeselam Mohamed, 39, as the leader of the network.
The operation, which began in 2009, led Spanish police to search various houses in Ceuta in June.
Ammunition of varying calibres and videos inciting Muslims to wage the holy war of Jihad were found after the raids, Spanish daily El País reported.
A month after the arrest of the eight suspects, a YouTube video thought to have been filmed in Ceuta's Benzú mosque has caused concern in the Spanish government.
Ceuta’s government official Francisco Antonio González told online daily 20 minutos it wasn't the first time radical calls to arms had been filmed in the Ceuta mosque.
Spanish authorities are still seeking the head of the group, who lives outside Spain but has family roots in Ceuta.