A teenager suffered nasty injuries after being attacked as she tried to board a bus in Christchurch.
At around 4pm on Sunday November 4, a 17-year-old girl was attacked by two other girls outside Specsavers Opticians on the High Street.
No arrests are yet to be made, with Dorset Police appealing for witnesses to come forward.
Police Constable Bill Nightingall of Christchurch Police said: "I am appealing for witnesses to this assault to find out exactly what happened.
"A young girl has suffered some very nasty injuries and we are keen to track down those responsible.
"We are particularly keen to talk with a woman who stopped to speak to the victim after the incident and who offered to call the police."
Anyone with information should contact Dorset Police in 101 quoting incident number 101.