Police are keen to speak to more witnesses who saw what happened in the lead up to an altercation on the A3 Northway last Friday afternoon.
The video of the incident was widely shared online, however, police want to know more about what happened before this.
The incident happened at a set of traffic lights in the way in to Portadown from the Armagh direction.
A police spokesperson said: “We’ve had contact made by several members of the public.
“However, there are for sure more people out there who witnessed the events leading up to the altercation who haven’t yet spoken to us.
“If you witnessed the incident, particularly the run-up to it on the Northway, please contact us on 101. The incident is 918 of 06/10/17.”
A 23-year-old man was arrested on suspicion of grievous bodily harm, disorderly behaviour, attempted criminal damage and dangerous driving.
He has been released on bail while further investigation is carried out.
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