FIRE CREWS were called to tackle a blaze in a large industrial caravan at Industrial Chemicals, Hogg Lane, Grays.
Crews arriving at the scene reported that the caravan was well alight and that propane cylinders were involved in the fire.
At 03:21 hrs, the incident commander reported that firefighters wearing breathing apparatus were using one main jet and two hose reels to tackle the blaze.
The cylinders surrounding the caravan had been cooled and removed to safety and there was no other risk close by.
The electricity had been isolated and firefighting operations continued.
At 03:35 hrs, crews reported that the fire was now surrounded and steady progress was being made in bringing the incident under control.
The incident was dealt with by 03:53 hrs.