Sri Lankan president, Maithripala Sirisena today using emergency legislation to ban the Islamist extremist groups accused of being responsible for the Easter Sunday blasts.
In a statement the president's media division said National Thawheed Jammath (NTJ) and Jamathei Millathu Ibraheem (JMI) had been banned.
Questions over how the bombers were able to carry out such attacks remain however after numerous reports, including a letter from the Deputy Inspector General of Police stated that the Sri Lankan leaders were warned repeatedly about the attacks by their own intelligence personnel and by Indian counterparts.