Cleveland Police have confirmed that a 65-year-old man who sustained serious headinjuries in Chestnut Avenue was walking his dog between Chestnut Avenue and thesea front and back between 9.30pm and 10.10pm on Wednesday 9thOctober.
They are appealing for anyone who may have witnessed his attack to get in touch.
This was a vicious attack which has left the victim with serious head injuries. He is undergoing treatment and we expect he will be in hospital for some time.
I would like to thank residents in the area who have been inconvenienced with the road closures in the area for their patience. Unfortunately, this will be on-going whilst we continue to search the area."
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.