A number of fire appliances from both Essex and London Fire Brigade have been mobilsed to a suspected fire at the cleaning giant Procter and Gamble .
Three crews from Essex and a number from London were called just after 10.15pm on Sunday to the Hedley Avenue site in West Thurrock.
The location and cause of the blaze is unconfirmed and investigations are continuing.
All workers on the site have been evacuated whilst a search takes place after an automatic fire alarm was triggered. Fire fighters are working with site staff.
More to follow