The Indonesian capital Jakarta has been hit by a series of explosions and gun battles on the streets, according to the BBC.
The blasts were centered on a major shopping and business district close to foreign embassies and the United Nations offices. At least one of the blasts hit a Starbucks cafe and a police security post.
A UN official, Jeremy Douglas, told the BBC he was about 450ft away from one of the first blasts near the UN's building:
"Then we ran into the building. We heard a third explosion. We got up to our office on the tenth floor and we heard a fourth, a fifth and a sixth."
Gunmen then reportedly holed up in the Djakarta Theater, part of the same complex that houses the Starbucks. Armed police, snipers and armored vehicles were deployed and gunfire broke out after police arrived at the cafe. Sporadic gunfire was reported for several hours afterwards.
Police initially thought there could be as many as 14 assailants, but five suspected attackers were among at least seven people killed, and three more attackers have been arrested. National Police Deputy Chief Commander Gen Budi Gunawan said two of the gunmen had been killed in a shootout outside a theater and two others blew themselves up at the police post in front of the Starbucks.
Police spokesman Col Muhammad Iqbal said the situation is now "under control," with no suspects hiding inside the shopping center.
ISIS reportedly has claimed responsibility for the attacks, and Indonesian President Joko Widodo described the attacks as an "act of terror":
"We all are grieving for the fallen victims of this incident, but we also condemn the act that has disturbed the security and peace and spread terror among our people."