A 26-year-old man has been arrested after assaulting a lorry driver on Shipquay Street in Londonderry.
It happened shortly before 2pm on Friday afternoon.
The man was arrested on suspicion of possession of a prohibited weapon, common assault and possessing article with blade or point in public place.
Inspector McManus said: "The male then made off from the scene before being arrested a short time later. The male assaulted was not injured but left badly shaken.
"The man [...] is currently assisting police with their enquiries."