Notts Police are appealing for a witness to a robbery in Worksop town centre on Saturday morning (25th April) to come forward.
The victim was approached by two men at around 11.25am under the Trader Clock at the junction of Newcastle Avenue and Bridge Place.
It is alleged the victim was then assaulted and had his belongings, including a mobile phone, taken from him.
Officers would like to hear from anyone who witnessed what happened.
DC Gary Hewson of Notts Police said: “We are particularly keen to hear from a lady who shouted at the offenders during the robbery, causing them to flee.”
“We believe she may have important information which could help our investigation.”
Two men have been arrested and charged with robbery in connection with the incident.
Anyone who witnessed this incident or has useful information is asked to call Notts Police on 101 quoting incident number 297 of 25th April, 2015, or Crimestoppers on 0800 555 111.