A man suffered deep cuts to his forehead and nose after a fight in Aylesbury bus station.
The 39-year-old victim was found at the Great Western Street station having been attacked by a man described as African or Caribbean.
He was taken to Stoke Mandeville Hospital but has since been released.
Police are appealing for information on the incident which happened on Monday last week (April 21).
The victim was found at 1.46pm with the cuts to his face, which police are treating as actual bodily harm.
If you have any information, contact PC Amy Fox on 101.
Alternatively, contact Crimestoppers anonymously on 0800 555 111 or online at www.crimestoppers-uk.org