Crews tackling industrial unit fire
UPDATED 9.00 AM
The fire was fully extinguished by 12.45am.
Crews returned this morning to check the area and monitor for any hotspots.
We believe the fire was started deliberately.
UPDATED 11.15PM
Crews are continuing to deal with the incident in Sible Hedingham.
Station Manager Pete Donovan said: "Crews worked extremely hard to get this fire under control as quickly as they did.
"The roof collapsed, which has made fully extinguishing the fire even more difficult.