Indonesian officials now say four civilians were killed and four militants died in last week's terrorist attack in Jakarta.
Officials said Sunday a bank employee has died of his wounds sustained in Thursday's attack by Islamic militants using bombs, grenades and guns against police and other targets.
Initial reports said five militants were killed, but officials now say one of them was actually a civilian killed during the clash, which left 34 people wounded..
One of the militants killed had previously been arrested for possessing ammunition during a visit to the country by U.S. President Barack Obama.
Indonesian national police chief Badrodin Haiti said 12 people connected to the Jakarta attacks were arrested Saturday in raids across the nation. Haiti said the group had received funding from unidentified sources within Islamic State, which has claimed responsibility for the attack.
Authorities say they have found evidence that additional attacks were planned in other cities against security personnel and foreigners.
Deadly terror attack
It was the worst terror attack in Indonesia, the world's most populous Muslim country, since twin hotel bombings in Jakarta in 2009 that left seven people dead.
Other countries in the region scrambled to ramp up security measures in response to the most recent attack.
In neighboring Malaysia, police said Saturday they arrested a suspected member of Islamic State who confessed to plotting a suicide attack in the country. The 28-year-old suspect was detained at a train station in Kuala Lumpur.
Authorities said the suspect was in possession of weapons and had hung several Islamic State flags. But they gave no details about the alleged plot.