Moroccan investigators conducted a significant operation targeting suspected jihadist supporters and questioned approximately 50 people across the kingdom, media reported on Thursday.
Among those detained, 21 individuals were arrested on suspicion of pledging allegiance to the Islamic State group or Al Qaeda, according to the reports.
During the operation, officers seized knives, publications advocating “terrorism,” and instructions for making explosives.
The North African country has experienced relatively few acts of violence by jihadist groups, but its security services frequently report crackdowns and foiled attack plans.
In a joint operation between Morocco and Spain’s security services targeting “terrorists,” two individuals, including an IS supporter, were arrested, as announced by police in both countries last week.