A rifle, ammunition "and documents inciting towards jihad" were seized during the operation on Thursday, it said in a statement yesterday.
An initial investigation pointed towards the men having ties with IS in Syria and Iraq, "recruiting and sending Moroccan volunteers" there.
A study by the US-based Soufan Group said last December that at least 1,200 Moroccans had travelled to fight alongside IS in Iraq and Syria in the previous 18 months.
In 2011, a cafe bombing killed 17 people, mostly foreign tourists, in the central city of Marrakesh.
Disclaimer: No Business Standard Journalist was involved in creation of this content
