Officers are appealing for information after a man was found injured near The Cask pub on Cambridge Terrace in Scarborough on Wednesday 31 January 2018.
The man, who is aged 37 and from Scarborough, was found unconscious at around 1.30pm. Ambulance attended and the man, who had head injuries, was taken to Hull Royal Infirmary, where he remains in a serious condition.
The injured man is described as 6ft tall, of medium build with dark hair and dark stubble. When he was found he was wearing a dark top and light grey jogging bottoms.
Officers are appealing for anyone who saw a man of this description in the Grosvenor Road/ Cambridge Terrace area of Scarborough on 31 January 2018 to come forward.
Anyone with any information that could assist the investigation into the full circumstances surrounding this incident is urged to get in touch.
Dial 101, press 2 and ask to speak to The Scarborough Serious Crime Team.
Alternatively, you can contact Crimestoppers anonymously on 0800 n555 111 .
Please quote reference number 12180017873 when passing on any information.
Last modified: February 1, 2018