A Spanish judge has ordered four Algerians held on charges of running a support network for an Islamic extremist group tied to al-Qaida and released seven others on bail while the investigation continues.
The 11 were arrested last week on suspicion of membership in a cell linked to the Algerian-based Salafist Group for Preaching and Combat.
Meanwhile, French police say they have detained six suspected Islamic extremists on charges of providing logistical support to radical networks. Authorities say the suspects drew attention to themselves by possessing assets far above their earnings. But officials say the six were not suspected of planning any attacks.
Police in Britain also announced the arrest north of London of a man suspected of purchasing weapons for use in terrorism.
In Denmark, authorities have released two of seven people arrested last month on suspicion of planning an attack in Europe.
Some information for this report provided by AFP, AP and Reuters.