The Civil Guard has arrested four people officers believe might have some connection with the Islamic State and clandestine immigration routes in Europe, the Spanish Home Office said in a statement on Monday morning.

Two men were arrested in Almería (Andalusia) and another two in the towns of Arteixo and Tufions-Vimianzo (Galicia).

The Home Office did not specify the nationality, ages or gender of the four, or what charges they had been arrested on, but said they were “linked to an irregular immigration network that could have been used by the Islamic State”.

A spokesman for The Ci...