Police Scotland is appealing for information after a racist incident at Arbroath Bus Station around 7.30pm on Wednesday.
A member of staff at the station was subjected to racist verbal abuse and threatening behaviour by a man who got on a number 73 bus to Carnoustie immediately afterwards.
The person responsible is described as in his early 20s, about 5ft 8ins tall with short light brown hair and wearing a white jacket.
He appeared to be under the influence of drink or drugs at the time.
Anyone with any information that may be useful should contact Tayside Division on 101 quoting CR/15371/17 or speak to any police officer.
Alternatively information can be passed anonymously via the charity Crimestoppers on 0800 555 111.