National Police say they have controlled the riot situation in Mako Brimob, Kelapa Dua, Depok, West Java, on Tuesday, May 8.
"There have been six fatalities - five of our comrades are dead and one of them also (died)", said national police spokesman Muhammad Iqbal.
A group of mobile brigade policemen patrols near the Mobile Police Brigade (Brimob) headquarters in Depok, south of Jakarta, Indonesia, May 9, 2018.
Five officers and one inmate were killed in a riot at an Indonesian detention center where terrorism suspects have been held, police confirmed on Wednesday.
The clash was triggered by the objection of the inmates to the prison's authorities making checks on food being brought to them, the spokesman said.More news: Volvo's next-gen infotainment will pack Google Maps, Assistant and Play Store
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Iqbal denied that Islamic State was involved.
The Islamic State group's Amaq News Agency published a report saying the fighting was between its fighters and the counterterrorism squad. "But if there is a threat to officers or others, we will take very strong action", he said, adding that the hostage was reported to be safe and the officers' bodies have been transferred to a nearby hospital.
Coordinating Minister for Political, Legal and Security affairs Wiranto said the operation to take over prison blocks controlled by the militants ended at 07:15 a.m. local time. He said police were still negotiating with the prisoners. Some four police officers are being treated.
It comes several days after the arrest of three terror suspects accused of plotting to attack the police headquarters and other facilities in the same area.
Last year, an attack by two suicide bombers, using pressure cookers packed with explosives, killed three police and wounded 12 at a Jakarta bus terminal.