(AhlulBayt News Agency) - The PET said that an armed 'attack against the Copenhagen offices of the Jyllands-Posten' had been imminent.
Three of the four suspects had arrived in Denmark from neighbouring Sweden, the PET said.
In Sweden, another man was also reported arrested in connection with the case.
The Jyllands-Posten has been the target of several alleged plots since the publication of the caricatures.
PET head Jakob Scharf said the terror alert level was not affected by the arrests.
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