A suicide bomber reportedly attacked the police headquarters in the Indonesian city of Solo on Tuesday at around 7:30 a.m. local time, killing himself and injuring another police officer.
Indonesian President Joko Widodo, shortly after the attack, ordered the police to arrest those connected to the suicide bomber. President Widodo is from Solo and he is also a former mayor of the town.
"I have asked the police chief to chase down the network and uncover who is the suicide bomber... We hope for the people to remain calm in this last fasting day. No need to be scared," Widodo was quoted as saying by Reuters.
Although the bomber's identity has not been ascertained, intelligence chief Sutiyoso suspected that the attacker was an Islamic State group supporter, Reuters reported citing Metro TV.
The police said that the culprit carried out the attack at the police station grounds in Solo, which is considered the breeding ground of religious fundamentalism. A police officer suffered minor injuries while trying to stop him from entering the police headquarters.
The Associated Press quoted Chief of Central Java Police Major General Condro Kirono as saying that the authorities think the suicide bombing was carried out by militant networks that target police and other security forces.
"This was done by terrorism networks that continue to regenerate. Whether it is an old or new network will be revealed by the investigation," Kirono said.
TV footage showed some damage on the street and the suicide bomber's destroyed motorcycle.
Indonesia has been on high alert since the attack in Jakarta by the ISIS which claimed the lives of four people, Reuters reported.
Indonesia has been witness to various attacks in the 2000s. The deadliest was a bomb attack in a nightclub in Bali that claimed the lives of 202 people, mostly tourists.
Since then, the police have successfully destroyed most of the domestic militant cells, but they are now worried that ISIS could again trigger violence in the country.