Indon police arrest 12 over Jakarta attack

A further 12 people have been arrested in Indonesia in relation to the recent deadly attacks in Jakarta, the country's police chief says.

A further 12 people have been arrested in Indonesia in relation to the deadly attacks in Jakarta. (AAP)

Indonesia's police chief says security forces have arrested 12 people linked to this week's attack by Islamic State militants in the centre of Jakarta.

"Police arrested 12 people linked to the Jakarta attack from West and Central Java as well as East Kalimantan," national police chief Badrodin Haiti told reporters on Saturday.