The violence at St Francis Catholic Church in the city of Owo during Sunday mass was a rare assault in a region usually considered safer than others in the country, and drew widespread international condemnation.

Indonesia's counter-terror squad has rounded up 53 suspected extremists in nearly a dozen provinces over the past week.

Police initially said they had classified the attack as attempted murder but later announced they had opened a terrorist investigation.

While no evidence was found that he planned to mount a domestic attack, he had wished to die a martyr and was willing to carry out attacks against countries which he deemed to be oppressing Muslims.

Shocking revelation of lone wolf plan by Singapore teenager not impossible to imitate with online tools.

Fifteen people have been taken to hospital, of whom seven were seriously injured.