A driver threatened a man and a woman with a piece of wood in Netherton.
The incident happened on Upper Lane at around 12.30pm on Saturday, when a 54-year-old man and a 43-year-old woman were walking on the pavement.
A car drove towards them, before the driver got out and threatened the pair whilst brandishing a piece of wood.
He then drove off.
PC Jason Finley said: “The victims were left shaken and distressed and it is important that we hear from anyone who saw this take place.
“We have arrested a 49 year old man in connection with the incident and he has been bailed pending further enquiries.”
Anyone with any information should contact police on 101 or Crimestoppers, in confidence, on 0800 555 111.