An investigation is underway after a worker at the Tata Steel plant at Port Talbot was injured by a spillage of molten steel.
Two others workers were treated for shock after the accident on Tuesday night.
All three were taken to Morriston Hospital in Swansea.
The Health and Safety Executive (HSE) has been informed.
Tata Steel said that an internal investigation is now underway.
The Health and Safety Executive said they planned to visit the site on Thursday.