Suicide bombers and gunmen attacked the heart of Indonesia's capital on Thursday and the assault was claimed by Islamic state.
Indonesian police on Thursday arrested four suspected militants believed to have been involved in the gun and bomb assault in the centre of the capital, which killed at least six.
The Jakarta Police has declared first-level security alert in the capital following a series of blasts in downtown area on Thursday.
Indonesian President Joko Widodo on Thursday condemned the attacks in the nation's capital Jakarta and ordered the apparatus to pursue and arrest those involved as well as their network.
Indonesian police shot dead four suspected militants who were part of a bomb and gun attack in the capital, Jakarta, on Thursday and the area is being secured, a police spokesman said.
One policeman and three civilians were killed, and two other policemen were injured after gunmen attacked a traffic police post near a shopping mall here on Thursday, national police spokesman, Brigadier General Anton Charliyan told reporters.
Another explosion was heard near a central Jakarta building attacked by militants on Thursday, a Reuters reporter said.
Several explosions went off and gunfire broke out in the centre of the Indonesian capital on Thursday and police said they suspected a suicide bomber was responsible for at least one the blasts.
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