The Jakarta Health Agency alerted four ambulances and eight medical personnel at the location of the Jakarta Bersorak Concert in Monas area, Gambir, Central Jakarta, Sunday (9/8) tonight.

"Our ambulance is completed with heart shock devices up to drugs," said Health Agency's AGD Operational Officer, Gunawan Efendi.

If there are patients, we will send them to the nearest hospitals, such as Tarakan RSUD or as the patient request.

They would be alerted until the concert ends.

"Hopefully everything goes smoothly. Principally we a re ready to provide assistance if anyone needs it," he stated.