A man who was bitten by a dog during an "altercation" has died, police have said.
The 55-year-old victim was taken to hospital in a critical condition following the incident in Wakefield, West Yorkshire, on Saturday afternoon and died later that evening.
Another 55-year-old man has been arrested on suspicion of murder, and being the owner of a dog dangerously out of control in a public place causing injury.
The dog, a German Shepherd, that is thought to have been involved has been seized by police.
West Yorkshire Police initially received reports just after 1.30pm that an altercation had taken place on a footpath off Blacker Lane, during which the man was bitten by the canine.
The area is often used by walkers, according to officers.
Read more from Sky News:
'Fury' over death of teen British cyclist
Multiple people killed and injured in motorway crash
Detective Chief Inspector Michael Cox said: "Sadly, a man has died and it is really important that we understand the circumstances of what has taken place.
"We know that two people, one named Sophie, stopped to assist the injured man and direct officers."
Mr Cox added: "We would urge these two women to come forward to help us with our ongoing enquiries into this tragic incident.
"The initial altercation has happened in an area used by walkers and we are urging anyone who has potentially seen or heard any part of the exchange between these two men to please make contact."
Anyone with information should contact West Yorkshire Police.
(c) Sky News 2026: Man bitten by dog during 'altercation' dies - as police make murder arrest
Amy Hunt and Dina Asher-Smith make history at the European Athletics Championships in Birmingham
Murder arrest after woman in her 90s dies in house fire in Gloucestershire
Sebastien Pocognoli announced as new boss of Scotland men's team
Medal ceremonies delayed at European Athletics Championships as police make fraud arrest
Jason Arday: Professor's family thank supporters as fundraiser donations pass £70,000
Finlay Tarling: 'Fury' over death of teen British cyclist during Portugal race
Arrest after stabbing at a hotel used to house asylum seekers
Police called to reported burglary find 17-year-old boy dead in Bedfordshire
Hundreds gather for Bonnie Tyler procession in Wales ahead of funeral
