The government of Indonesia has taken to Twitter to warn all people in Jakarta after it was rocked by several explosions from multiple suspected terrorist attacks.
Reports of at least nine explosions in the Sarinah region, popular with tourists and close to the UN office, have resulted in multiple casualties and fatalities.
The head of Indonesia's national intelligence agency has told Reuters that while the attacks are "definitely terrorism... there are no indications yet that it's ISIS-related".
Jakarta is frequently dubbed the unofficial Twitter capital of the world due to its popularity among social media users.
The official Indonesian government Twitter account has been issuing warning on which areas to avoid and asking for people to remain calm.
It has also started the hashtags #savejkt and #PrayforJakarta, although the tweet containing the #PrayforJakarta tag was deleted just a few hours later.
Ada penanganan ledakan di depan Sarinah, Jakarta Pusat. Sementara, lalu lintas dialihkan #PrayForJakarta— Humas DKI Jakarta (@jakartagoid) January 14, 2016
Diharapkan warga Jakarta untuk tetap tenang. Yang berada di sekitar Sarinah, Thamrin lebih baik tunggu keadaan aman #savejkt— Humas DKI Jakarta (@jakartagoid) January 14, 2016
The government has also set up a new hashtag #SafetyCheckJKT telling Jakarta residents to use it to share photos and locations of safe areas within the city.
The tweet attempts a friendly, conversational tone, beginning with "Hi Jakarta residents!" and ending "stay safe!"
Hai, warga Jakarta! Bantu lapor keamanan lokasi di sekitar Anda dengan foto dan hashtag #SafetyCheckJKT. Stay safe!— Humas DKI Jakarta (@jakartagoid) January 14, 2016
Basuki Tjahaja Purnama, the governor of Jakarta, strongly condemned the attacks. He called for the people of Jakarta not to panic and report any suspicious activity.
Turut berduka cita dan mengutuk keras atas kejadian bom di Sarinah. Masyarakat jangan panik dan takut. Laporkan jika ada yang mencurigakan.— Ahok Basuki TPurnama (@basuki_btp) January 14, 2016
The US embassy in Jakarta has also used Twitter to reach its citizens and warn them of the danger.
Emergency Message for U.S. Citizens: Avoid Sari Pan Pacific Hotel & Sarinah area on Jln Sudirman & Thamrin, Jakarta https://t.co/zupKsuB5zw— U.S. Embassy Jakarta (@usembassyjkt) January 14, 2016
While GrabTaxi Indonesia is perhaps the first brand to publicise its efforts to help on social media, offering free rides to safe locations for people in Jakarta.
Tumpangan evakuasi GRATIS dr Grab akan berlaku di seluruh area Jakarta & Tangerang Selatan yang terkena dampak pengeboman. #StaySafeJakarta— GrabTaxi Indonesia (@GrabTaxiID) January 14, 2016
Residents also took to Twitter using their own hashtag #KamiTidakTakut, which translates as "we are not afraid".
Indonesian President Joko "Jokowi" Widodo made his first comments to AP.
"I have received reports some time ago about the explosion in Thamrin street Jakarta. We express condolence to those who became victims, but we all also condemn the attack that caused restless among the community," he said.
Facebook, which quickly created a special 'safety check-in' feature during the Paris attacks last November, has yet to introduce it for the current crisis in Jakarta.