Fire chiefs say it is still too early to predict how long a blaze at Niramax’s Hartlepool waste recycling centre will continue to burn.
Flames were reported at the plant around 11pm on Friday and at one point 14 fire crews were at the scene, dealing with a fire which spread between two buildings.
Two crews were still at the scene last night and a Cleveland Fire Brigade spokesman said it was difficult to say how much longer the fire would burn.
“We now have two appliances at the scene and we are continuing to monitor the situation and dampen down,” he said.
“There is a lot less smoke now and most of what there is left is drifting out to sea.”
Getting to the actual seat of the fire had been difficult, he said.
“There is no risk to the public, but there is some structural damage which has restricted our access to the site – we can’t go into it.
“We are doing all we can at the moment, but there is nothing more we can do without risking our firefighters.”