A man was approached in Northampton before being followed towards the bus station by a man who shouted at him and robbed him of his phone, wallet and money.
The incident happened between 7.50am and 8am on Tuesday, November 21, when the man was approached on the Drapery, outside McDonalds, and was followed towards the bus station before being robbed.
At the time of the incident, three buses were parked nearby, close to the Debenhams store, with passengers on board who may have witnessed what happened.
A police spokeswoman said: "The suspect is described as a black man aged 25-30, 6ft 3in tall of slim build, clean shaven with short dark hair. He was wearing dark tracksuit style bottoms and dark tracksuit top."
A man arrested in connection with the incident has been released under investigation, Northamptonshire Police today revealed.
Anyone with information about the incident is asked to call Northamptonshire Police on 101, stating incident 17000507643.