Security cooperation between Morocco and Spain has acted as a bulwark against terrorist plots with the arrest in the North African country of a terrorist four days ago planning attacks on Spanish Sevilla.
Spanish media reported that the suspect was planning terrorist attacks on Sevilla as it prepares to host the Semana Santa religious festival attended by thousands.
Spanish news website El Confidencial cited unnamed sources as saying the suspect had targeted the religious celebrations in the city.
The operation was coordinated between Spain and Morocco, Spanish media said.
Spanish police said the interior ministry decided last week to beef up security procedures for events including Easter parades and elections. Spain holds a national election on April 28.
Security officials from the two countries meet regularly and cooperate on a range of fronts including counterterrorism, fighting all sorts of trafficking and curbing illegal migration.