Authorities had initially identified a homegrown extremist group, National Thowheeth Jama'ath, as the prime suspects. But they now suggest that the plot had "international support" from a terrorist organization in India called Jamaat-ul-Mujahideen, and perhaps the Islamic State. This undated image posted by the Islamic State group's Aamaq news agency on April 23 purports to show Mohammed Zahran, a.k.a. The Islamic State propaganda network frequently claims responsibility for violent acts and plots across the globe, often without furnishing any proof. The New York Times calculates that the Islamic State or its acolytes have carried out attacks in at least 25 different countries since 2017.

Source: CBC News April 23, 2019 18:56 UTC