Police are currently at Rougham Tower Avenue in Bury St Edmunds at the scene of an industrial incident.
Officers were called just before 3pm today, Thursday 1st April, along with Suffolk Fire and Rescue Service.
Nine fire appliances from across the region attended the incident with many more mobilised but stood down en route.
The Health and Safety Executive has also been informed.
The incident remains ongoing and investigations continue.
At this stage it is believed that one person is affected, although the cause will have no wider threat to the community.
A police cordon remains in place whilst the investigation continues.