Shipyard workers at the main Ulsan yard of Hyundai Heavy Industries (HHI) have staged a protest by downing tools and occupying a crane.

The industrial action at the world’s largest shipbuilding facility took place following a dispute during ongoing wage negotiations.

HHI is one of the shipbuilding companies operating under Korea Shipbuilding & Offshore Engineering (KSOE), which is the shipbuilding arm of Hyundai Heavy Industries Holdings.