Police have launched a CCTV appeal to trace a man suspected of being involved in a stabbing that happened near Callaghan Square in Cardiff.
The incident happened at 9:13am on Friday 20 March near the British Gas building.
A 31-year-old man was taken to hospital in Cardiff with leg wounds and police believe those involved were known to each other.
One man has already been arrested, charged and sentenced to 18 weeks imprisonment after the incident.
South Wales Police want help from members of the public to trace a second man suspected of being involved.
Police want anyone with information to contact them on 101 quoting ref: 2000097993 or contact Crimestoppers free and anonymously on 0800 555 111.