Three workers have been seriously injured in an explosion at Hanjin Heavy Industries (HHIC) in the Philippines.
The blast occurred in Subic Bay on Friday, according to HHIC security officer Florante Ancheta, who was cited by the InterAksyon website.
He identified the victims as Alvin Salvador, Noel Hilario and Liendon Hanopol.
Ancheta told authorities that sparks from grinding machines could have caused the accident.
