Seven people were arrested in Spain Sunday in relation to the supply of firearms and cash to terrorist groups in Syria and Iraq.

The Spanish interior ministry said the international cell operated as a “business complex,” which allowed it to send the supplies unsuspected from Spanish ports under the guise of humanitarian aid.

Among those arrested include five Spanish nationals of Syrian, Jordanian, and Moroccan origin, and two foreigners of Syrian and Moroccan origin. All have links to ISIS and the Al Nusra Front, according to the Spanish interior ministry.

“The continued supply [of logistical material] by this cell directly supported the continuity and reinforcement of terrorist structures in Syria and Iraq,” it said in a statement.

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