At about 1725 hours, welders were at work on a tanker at PT Multi Ocean Shipyard (MOS) on Indonesia's Karimunbesar Island.

After the explosion, the two victims injured where immediately taken to Muhammad Sani Regional General Hospital for treatment.

The local police have launched an investigation into the cause of the incident.

The vessel has been identified as the 8,000 dwt Success Eergy XXXII.