"The suspects were involved in the destructive agenda of this terrorist group as well as their attempt to plan and conduct large-scale terrorist and criminal operations in Morocco," said a statement of the Central Bureau of Judicial Investigation, Morocco's intelligence bureau.
"The suspects, aged between 23 and 33, had links with fighters on the Syrian-Iraqi scene in order to benefit from their experiences," the statement noted.
Electronic devices, knives and a military uniform were seized, it said, adding that preliminary investigations indicate that the suspects have pledged allegiance to the IS.
The five individuals will be brought to justice upon the completion of the investigation led under the supervision of the competent public prosecutor's office, the statement said.
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