Spokesman Jan Glent said two officers were being sent to cooperate in the investigation with Kenyan police and to block any further involvement with al-Shabaab by Norwegian citizens of Somali origin, Norway's NRK reported Thursday.
The Somalia-based terrorist group seized Nairobi's upscale Westgate Mall in September, killing more than 60 men, women and children.
Norwegian authorities said, "We have lately seen an increase in the number of persons leaving Norway to take part in acts of war, attend training camps or join terrorist networks abroad," The New York Times reported. "We are concerned that this development may have an increasingly negative impact on the threat situation in Norway."
Kenyan authorities identified one of the attackers as Sudanese. A spokesman for the Sudanese armed forces denied the claim Wednesday, saying the assailant "was of Somali origin."
A senior al-Shabaab leader, Abdikadir Mohamed Abdikadir, lived in Norway from 2004 to 2008 while his asylum request was being processed, a Norwegian television channel reported this week. He left Norway because his application was completed.
A Norwegian newspaper Thursday said the mall attacker police were investigating was not Abdikadir.
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