A man was seriously injured by a group of men in a weapon attack near to Bathgate train station.
A 36-year-old man was attacked by three men before fighting them off and running away on Friday night at 11.15pm.
The victim was taken to hospital with serious injuries.
Detective Lynn Myles said: “Our enquiries are continuing to trace the suspects.
“Anyone who can assist in identifying these individuals, or who has information relevant to this investigation is urged to contact police immediately.”
One man in the group is described as being between 5ft 6in and 5ft 9in with blonde hair. He is of a medium build and was wearing a black long sleeved shirt and dark jeans.