Officers also want to trace a vehicle which they believe is linked to the altercation.
Police investigating an incident in Shipley which is believed to have involved an altercation between two men have released details of a car they would like to trace.
Detectives have also released an efit of one of the people believed to be involved (pictured).
A black VW Golf with a damaged rear offside door is believed to have been seen in the area at the time of the incident, which was said to have occurred in High Bank Lane, close to the Northcliffe Golf Club between on Sunday
Police attended but no one was present when they arrived and no signs of a disturbance were found.
One of the males was described as Asian, of stocky build and about 5ft 8ins tall. The other male was not seen.
Detective Inspector Craig McKay, of Bradford District CID, said:
"We need to establish what took place here and are continuing to appeal for any witnesses or anyone with information to come forward.
"We would also like to hear from anyone who used High Bank Lane between these stated times, as they may have seen something which will be of use to our investigation.
"We believe these men may have left in the same car, so we would like to hear from anyone who saw this vehicle or one of similar description, driving away from the area at around this time."
Anyone with information is asked to contact Bradford District CID, quoting log 0634 of 17 July. Information can also be passed anonymously to the independent charity Crimestoppers on 0800 555111.
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