More Arrests Over Morocco Tourist Murders

Nineteen people have been arrested in the wake of the murder of two Scandinavian women last week in Morocco's Atlas Mountains, a security source familiar with the case says.

Louisa Vesterager Jespersen, 24, from Denmark, and Maren Ueland, 28, from Norway were found dead early on December 17 near the village of Imlil en route to Toubkal, North Africa's highest peak and a popular hiking and trekking destination.

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University students Maren Ueland, 28, and Louisa Vesterager Jespersen, 24, were killed in the Atlas Mountains earlier this month. Image: AAP

The four main suspects, aged between 25 and 30 years, had pledged allegiance to Islamic State in a video made three days before the bodies were found, but without agreeing to this in advance with any foreign group, police and domestic intelligence spokesman Boubker Sabik said.

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A screengrab from footage believed to be linked to the attack, of four men pledging allegiance to ISIS. Image: provided

He described the four men as "lone wolves," adding that "the crime was not coordinated with Islamic State".

Electronic devices, an unauthorised hunting rifle, knives and materials that could be used for bomb-making were found during police raids.