Two masked men on a moped are wanted by police, after they chased a 17-year old man and attempted to attack him with a knife.
The incident happened on Front Street, in Arnold, at around 3.30pm yesterday (Nov 15).
No-one was hurt but officers have released an image of the two men in the hope they can be identified.
Though their faces are covered with Halloween-style masks, the public are encouraged to look at their distinctive Nike tracksuits and fur-lined parkas.
They were driving a red moped.
Detective Inspector Kim Binns, who is leading the investigation, said: “Clearly this behaviour is appalling and I am asking for people’s assistance in identifying those involved.
“We are really keen to get their names as soon as possible so we get them in custody because we cannot accept people riding round a main high street in broad daylight brandishing a knife.”
Anyone with information which could identify the men is encouraged to contact Nottinghamshire Police on 101, quoting incident number 565 of 14 November 2018.
Anyone who wants to give information and remain anonymous can do so through Crimestoppers on 0800 555 111.