The cartoonist, Lars Vilks, has been threatened over his drawing depicting the Prophet Muhammad with the body of a dog. The head of an al Qaeda-led group in Iraq, Abu Omar al-Baghdadi, posted an audio tape on the internet in September 2007 offering $100,000 for the killing of Mr. Vilks.
On Tuesday morning, detectives arrested three men and two women in Waterford and Tramore and another man and woman at Ballincollig, near Cork city. A number of searches also took place.
A garda spokesman said the operation was part of an investigation into a conspiracy to murder an individual in another jurisdiction.