Police are appealing for information following a serious assault in Lancaster city centre.
The assault took place outside McDonalds on Cheapside in Lancaster on Sunday April 1 just after 4am.
A police spokesman said: “There was a verbal altercation which then resulted into a physical confrontation.
“The victim tried to step in and stop the altercation, he was then hit in the face twice.
“The victim, aged 19, suffered a broken jaw and a missing tooth and took himself to hospital.”
Police believe the male in the photograph can help with enquiries and need him identifying.
If you know who he is please either ring 101 and quote WB1803517 or email DC 6746 Marshall direct on firstname.lastname@example.org.