JAKARTA, Jan. 14 (Xinhua) -- Indonesia launched its massive COVID-19 vaccination program on Thursday with health workers as the main priority group, a day after President Joko Widodo received the first shot developed by China's biopharmaceutical company Sinovac Biotech.

On Thursday morning, a mass vaccination was held at state-run Cipto Mangunkusumo Hospital in central Jakarta.

Indonesia has ordered a total of 125.5 million doses of the Sinovac vaccine. Currently 3 million ready-to-use doses, which were delivered to the country in two batches in December last year, have been distributed to the 34 Indonesian provinces.

Indonesia plans to vaccinate about 180 million people, or two thirds of the population in a period of 15 months. The COVID-19 vaccines will be offered free of charge for all Indonesians.

[caption id="attachment_54937" align="alignnone" width="900"] A medical worker receives inoculation of China's Sinovac COVID-19 vaccine at Cipto Mangunkusumo Hospital in downtown Jakarta, capital of Indonesia, Jan. 14, 2021. (Xinhua/Ye Pingfan)[/caption] [caption id="attachment_54938" align="alignnone" width="900"] A medical worker shows China's Sinovac COVID-19 vaccine at Cipto Mangunkusumo Hospital in downtown Jakarta, Indonesia, Jan. 14, 2021. (Xinhua/Ye Pingfan)[/caption] [caption id="attachment_54939" align="alignnone" width="900"] Indonesian Vice Health Minister Dante Saksono (2nd R) shows his vaccination proof paper after receiving China's Sinovac COVID-19 vaccine at Cipto Mangunkusumo Hospital in downtown Jakarta, Indonesia, Jan. 14, 2021. (Xinhua/Ye Pingfan)[/caption] [caption id="attachment_54940" align="alignnone" width="900"] Medical staff wait to receive inoculation of China's Sinovac COVID-19 vaccine at Cipto Mangunkusumo Hospital in downtown Jakarta, Indonesia, Jan. 14, 2021. (Xinhua/Ye Pingfan)[/caption] [caption id="attachment_54941" align="alignnone" width="900"] Indonesian Vice Health Minister Dante Saksono receives China's Sinovac COVID-19 vaccine at Cipto Mangunkusumo Hospital in downtown Jakarta, Indonesia, Jan. 14, 2021. (Xinhua/Ye Pingfan)[/caption] [caption id="attachment_54942" align="alignnone" width="900"] A medical worker receives inoculation of China's Sinovac COVID-19 vaccine at Cipto Mangunkusumo Hospital in downtown Jakarta, capital of Indonesia, Jan. 14, 2021. (Xinhua/Ye Pingfan)■[/caption]