Crowds gather despite initial shockpublished at 05:27
Despite panic and initial shock, big crowds soon gathered at the scene - to watch police pursuing suspects.
...while others ran for safety from their offices...
Several explosions rocked Jakarta, near a popular shopping mall
After the initial blasts gunfire and further explosions were heard
Five attackers are among at least seven people killed. Some 23 people are injured
The so-called Islamic State group has said it carried out the attacks
Penny Spiller, Claudia Allen, Alastair Lawson, Tessa Wong, Saira Asher, Heather Chen, Simeon Paterson and Naziru Mikailu
Despite panic and initial shock, big crowds soon gathered at the scene - to watch police pursuing suspects.
...while others ran for safety from their offices...
#PrayForJakarta is now one of Indonesia's biggest Twitter trends, as thousands of social media users are tweeting out condolences in memory of those killed in today's blasts.
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BBC News Asia has created a Twitter list of people following the explosions in Jakarta. You can subscribe to it here, external.
Metro TV has tweeted this image of a car near the site of the explosions that was hit by gunfire.
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AFP is quoting a police spokesman as saying that four people have died - one police officer and three civilians. Anton Charliyan told the news agency: "For now the gunfire has stopped but they are still on the run, we are afraid there will be more gunshots."
This tweet from an aviation specialist from Jakarta is being shared on Twitter.
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The Sydney Morning Herald's Indonesia correspondent has shared this photo from the scene of the blasts at the Sarinah shopping centre on her Twitter account.
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The ABC's Indonesia bureau chief has tweeted a comment from a Jakarta police spokesman.
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One of the blasts was reportedly in a Starbucks cafe.
"The Starbucks cafe windows are blown out. I see three dead people on the road. There has been a lull in the shooting but someone is on the roof of the building and police are aiming their guns at him," a Reuters photographer was quoted as saying.
The ABC's Indonesia bureau chief has shared this image on her Twitter account, of SWAT police officers gathering near the Sarinah shopping mall.
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Thousands of Twitter users in Indonesia are keeping up with latest updates from Jakarta using the hashtags #Sarinah, external#Thamrin, external and #BomSarinah, external.
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There are multiple reports of ongoing gunfire near the bomb site, specifically near a Starbucks outlet at the Sarinah shopping centre.
Twitter users in Indonesia are sharing updates of another explosion in Jakarta, this time in the western Palmerah district.
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Police officers dressed in SWAT attire have arrived near the Sarinah shopping mall in Jakarta, where the blasts took place.
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The BBC's Jerome Wirawan near the scene
Police are cordoning off the area and asking people to stay away. There are unconfirmed reports of gunmen nearby. Just now police officers were taking cover behind a car. It's quite frightening actually
More pictures of the bomb site have emerged on Twitter showing a crowd gathering in the area. This image by local media outlet Kompas shows the site with two bodies on the road blurred out.
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Indonesian media have begun tweeting the first pictures of the bomb scene. The explosions appeared to have hit a police post.
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The Sarinah shopping centre is close to the presidential palace and United Nations offices. It is in a busy downtown area with major hotels and offices for multinational corporations.
Eyewitnesses say that the blasts took place at a police box in the middle of a road, near the Sarinah shopping centre in the Indonesian capital, and at least two bodies can be seen.