JAKARTA, Indonesia — Indonesia’s national police confirmed through DNA testing that the country’s most wanted terrorism suspect had been killed during a gun battle earlier in the week on Sulawesi Island, the police announced Saturday.

The police said their laboratory had confirmed the identity of Abu Wardah, better known as Santoso. He was the leader of the Mujahedeen of Eastern Indonesia, a terrorist cell that has professed allegiance to the Islamic State.

Santoso and one of his followers were killed on Monday during a gunfight with Indonesian security forces near the Central Sulawesi Province town of Poso, which has long been a hotbed for terrorist activity. Around 20 members of his terrorist cell remained at large.

“From the DNA test results, it’s positive and confirmed that one of the corpses is Santoso,” said Brig. Gen. Boy Rafli Amar, a national police spokesman.