Kent Police is appealing for witnesses after a man suffered serious head injuries during an assault in Birchington.
The incident happened in Minnis Road, between 7.45pm and 8.05pm on Christmas Day (Wednesday 25 December).
Officers attended and the victim, who is in his 30s, was taken to a local hospital for treatment.
A 28-year-old man who is known to the victim was arrested at the scene on suspicion of causing grievous bodily harm. He was later released on bail pending further enquiries until Thursday, January 16.
Officers would like to hear from anyone who witnessed the incident, particularly a man who was walking his dog at the time and is believed to have intervened to stop the assault.
They would also like anyone with dashcam or CCTV footage to come forward by calling the appeal line on 01843 222289 quoting reference 46/244521/19.
Alternatively call the independent charity Crimestoppers in Kent anonymously on 0800 555111 or complete the online form at www.crimestoppers-uk.org.