A joint investigation has been launched by South Wales Police and the Health and Safety Executive following a 'serious incident' at Port Talbot.
A man, who works at the plant, is understood to remain in a critical condition after being airlifted to the University Hospital of Wales.
Officers received the call just before 5pm yesterday but would give no further details about the nature of the incident.
A spokesperson for Tata Steel in Port Talbot says the company is co-operating fully with an investigation by the South Wales Police and the Health and Safety Executive.
Mr Dangerfield added that he could not comment on the circumstances of the incident due to the investigation.