Indonesia’s police said they had arrested more suspected militants following suicide bombings in Jakarta last week that killed three police officers. Islamic State claimed responsibility for the bombings on social media.
Central Java Police spokesman Djarod Padakova said a man known as Wahyudi was arrested in Sukoharjo, West Java province, and another suspect was seized in the adjacent district of Karanganyar.
National police spokesman Setyo Wasisto said a third suspect was detained a day earlier in Cibubur near Jakarta.
Six suspects have been arrested since the May 24 attack in which two suicide bombers targeted police at a bus terminal in eastern Jakarta.
Three policemen and the two attackers were killed and 11 people, including the police and civilians, were wounded.
“We must continue to keep calm (and) keep cool. Because … we Muslims are preparing to enter the month of Ramadan for fasting,” President Joko Widodo said after the attack.
Wisasto said one suspect was believed to be the last person to meet one of the bombers, Ahmad Sukri, hours before his death.
The police said Wednesday’s attack had targeted officers using pressure cookers packed with explosives.
In January last year a bungled suicide bomb and gun attack on central Jakarta killed four civilians and four extremists. Indonesia’s Islamist militants have largely failed to inflict large deaths tolls during recent attacks.
Indonesian police chief General Tito Karnavian said DNA tests has identified the suicide bombers as Sukri, 32, and Ichwan Nurul Salam, 31, both from West Java.
Karnavian said they were members of Jemaah Anshorut Daulah, a small extremist group formed in 2015 that has pledged allegiance to the leader of so-called Islamic State leader Abu Bakr al-Baghdadi.
The US designated it a terror group earlier this year and it has been implicated in several attacks in Indonesia over the last 12 months.
To the east, Indonesia is stepping up patrols in border areas with the southern Philippines to prevent militants crossing into the country as the Philippines battles another Islamic-State-affiliated armed group on the large southern island of Mindanao.
The Maute group is assisted by foreign fighters, including recruits from Malaysia and Indonesia.
Indonesian Coordinating Minister for Political, Legal and Security Affairs Wiranto told the media that some of the Islamists, having faced determined resistance from the Philippine military, would be planning to return to Indonesia.