Ensus - one of the UK's biggest biofuel makers - has temporarily halted production at its Wilton plant on Teesside
It says the high cost of wheat, which it processes to make biofuel, animal feed and carbon dioxide, means it's not competitive to continue production, but no staff are being laid off.
More top news
Kerrie Gosney brings you Sunday night's forecast
Gates giving access to the walls have been shut between Fishergate Bar and Postern Tower.
Now, the remaining three will battle it out for the title of King or Queen of the Jungle 2016.