Emergency services were called to the Banham Poultry factory in Attleborough in the early hours of this morning following an incident.
A spokesperson for Norfolk Constabulary said: 'Police were called at approximately 1am following concerns for the safety of two members of staff.
'Officers remain on the scene and are liaising with the health and safety executives.'
UPDATE: Two found dead at Banham Poultry factory
Fire crews from Attleborough, Wymondham, Carrow and environmental protection units from Sprowston and King's Lynn North also attended the factory on Station Road to assist the police and ambulance. Crews wore breathing apparatus and used gas monitors to make the area safe.
Police confirmed the incident is linked to reports of a suspected chemical spill that has halted train services at Attleborough.
Cambridge bound services will not be calling at Attleborough due to the spillage but trains will be stopping in the Norwich direction.
A spokesperson for Greater Anglia said they awaiting further instruction from police and apologise for any disruption.
The incident comes hours after the news that Banham Poultry is looking for a buyer to save 1,000 jobs at the factory.
Harvey Barker, from Travis Perkins trading, Station Road said: 'You cant really see anything but there's a police car parked to side of train track. There's police there trying to keep people away from the track.'
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