The 73 meter long, 2599 dwt tanker Nona Tang II exploded in the Singapore Strait while berthed at Batu Ampar, Batam City, Indonesia.  The vessel was undergoing repairs when welders on the cargo deck ignited fuel vapors. One worker was instantly killed while two others were badly burned. The Nona Tang II continued to burn until local fire brigades and two patrol boats arrived on scene. The fire fighters were able to extinguish the blaze a short time later. Authorities have launched an investigation into the incident. Initial reports state the welders did not have permits to conduct repair work at the time of the incident in violation of safety laws.