Spanish news reports say police have arrested at least 10 people suspected of forging passports and other documents for al-Qaida.
Cadena SER radio and other media outlets say the arrests took place Tuesday morning in the northeastern city of Barcelona.
The radio station says the suspects are from North African countries. Cadena SER also says no explosives have been found and that police are searching for a printer used to forge passports. Barcelona police could not immediately be reached for comment.
Police have carried out several operations against suspected al-Qaida supporters in Spain in recent years.