Three schoolboys were threatened with a knife during a robbery in Top Valley before having their phones stolen.
The incident happened at around 8.20pm on Wednesday (February 7) where three 15-year-old boys were assaulted by a group of around six youths in the Leiston Gardens area.
During the assault, the victims were kicked, punched and threatened with a knife.
Detectives are appealing for information and if you saw anything suspicious in the area or have any information that could help, you are asked to contact Notts Police on 101 quoting incident 821 of February 7.
You can also contact Crimestoppers anonymously on 0800 555 111.