Workers of a Jaguar Land Rover plant in Solihull, West Midlands, were evacuated from the facility on Sunday following what has been described as a "chemical alert".
"Today I have had reports of an incident at Jaguar Land Rover in Solihull. Workers are being hosed down and taken to hospital. That's all the information I can get. I'm hoping everyone is safe and nobody is taken ill. I'm going to contact JLR to see if I can get any further information", local councillor Diane Donaldson told the outlet.
A number of ambulances have been seen at the scene of the incident.
According to local ambulance service, 28 patients have been assessed with one being hospitalised with minor symptoms.