There has been a fatality at Taranto Limited situated on the Old Scarva Rd, Craigavon.
A number of emergency services remain at the scene along with HSENI inspectors.
The circumstances of the incident at this time remain unclear.
A NIAS spokesperson said "The Northern Ireland Ambulance Service received a 999 call at 15.05 on Tuesday, 04 August 2021 following reports of an incident in the Old Scarva Road area of Tandragee.
"NIAS despatched one Emergency crew and one Officer to the scene. The
charity Air Ambulance with HEMs crew on board was also tasked to the
incident. No one was taken from the scene.
A spokesperson for the Health and Safety Executive for Northern Ireland (HSENI) said : “HSENI is aware of reports of an incident in the Craigavon area and Inspectors are attending the scene.”