Several people linked to the movement of the Islamic State were arrested in Indonesia after a suicide attack.
Indonesian police said on Monday they had arrested dozens of suspects in the west of the country after a suicide attack linked to the Islamic State (IS) group that killed the suicide bomber and wounded six others last week.
Some 45 suspects were arrested in Medan, north of Sumatra Island, where an attack on a police station took place, while two men accused of making the bomb were shot dead during a raid said the spokesman of the National Police Dedi Prasetyo.
"The two men resisted and tried to attack the police with sharp weapons and an airgun"he detailed.
Police stations targeted
These two men had made the bomb that the suicide bomber of 24 years bore on him, according to the official.
Authorities initially attributed Wednesday's attack, which injured four policemen and two civilians, to a " lone wolf ".
Police stations are a frequent target for extremist attacks in Southeast Asia, which has the largest Muslim population in the world and has recently seen radicalized groups.
Some 20 suspects arrested since the attack, including the kamikaze's wife and the couple's religious mentor, played a direct role in the attack, police said.
Several suspects were linked to the jihadist organization Jamaah Ansharut Daulah (JAD), who pledged allegiance to the Islamic State (IS) group, according to the investigation.
Strengthening security measures
"The woman and her husband (the attacker) were members of the JAD network"said Dedi Prasetyo. "They participated in military training at a camp (…) and were taught how to buy pistols and knives", he said.
According to the spokesman, the attack was planned in retaliation after arrests of militants by the Indonesian elite unit Densus 88.
Meanwhile, residents of Medan Monday protested plans to bury the body of the suicide bomber in a city cemetery.
Last month, Indonesian President Joko Widodo announced heightened security measures after Security Minister Wiranto was stabbed and seriously injured in an attack.
Indonesia, which has long enjoyed a reputation for religious tolerance, has seen the development of conservative Muslim currents in recent years and has also seen emerging extremist groups.