Police are investigating after a driver was caught beeping her horn aggressively and shouting at horse riders as she drove up behind them.
Footage, believed to have been posted on Snapchat, shows her using her horn repeatedly while driving behind two horse riders.
The riders were using the A548 Wern Bach crossroads in Llanfair Talhaiarn near to Abergele when the incident happened, NorthWalesLive reports.
The footage was uploaded to Snapchat with the captions: "Think me mums got road rage take a chill pill bro" (sic) and "Some women on her horse tellin me mar to slow down" accompanied with laughing emojis.
When the riders askes the woman to slow down, she revs the engine and launches into a foul-mouthed rant in a bid to make them move over.
She can be heard screaming "Do you like that c***t? Slow down? I own the f****ing road."
The driver continues to sound her horn and can then be heard twice shouting "where's your tax and insurance love?".
The mum then adds: "Why don't you clean that s**t up down there that your horses just left? That's not nice."
At one point it appears that one of the horse riders begins to film the incident with a second voice in the car saying "she's got her phone and taken a picture".
It is understood that the two horse riders were not injured.
North Wales Police confirmed they were contacted about the incident and want anyone with information to contact them on 101.
A spokesman said: "We were called at 1.11pm on Tuesday, September 10. Report of a woman driving dangerously near two horse riders and shouting abuse at them. The incident happened on the A548 at Llanfair Talhaiarn near Abergele. Anyone with information call North Wales Police on 101 quoting reference X132514."
