Four Gothenburg residents arrested on Saturday had planned an attack with bombs and firearms, according to police. The men, all in their 20s, reportedly have links with Shabaab. Authorities have confirmed that three are Somalis: Kulan Mohamud Abel, Mahamud Abdi Aziz, and Mohamud Abdi Weli; and one, Mahmood Salar Sami, is an Iraqi.