A man was left with a broken elbow during a fight in Preston city centre during the early hours of Sunday morning.
Preston Police were called to Church Street after two men are understood to have set upon a 38-year-old man.
CCTV pictures show two men police want to speak to following the incident on Sunday (5 November) at 3.40am.
The man was walking in Church Street when he became inolved in an altercation with the two men.
Grappling broke out between the three men and the victim and one of the men fell to the floor.
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During the fall the man’s elbow was badly broken and he was taken to Royal Preston Hospital for treatment.
Detective Sergeant Andrew Crook said: “The victim in this case was attacked by two unknown males and has sustained a severe fracture to his right arm.
“The injury is likely to affect the man’s ability to do his job and is potentially life-changing.
“If you recognise the men pictured, or can assist with our enquiries, contact police immediately.”
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One of the men is described as 5’10 to 5’11”, slim with a dark fringe. He was wearing a grey and white hooded top.
A second man was described as white, 5’9″, large build with short brown hair.
Anyone with information can contact police on (01772) 209796 quoting crime reference SA1717532.
Alternatively you can contact independent charity Crimestoppers anonymously on 0800 555 111 or online at Crimestoppers-uk.org.