A fight broke out on a busy Cardiff Street last night as a number of people ignored the lockdown rules.
The group were seen engaging in a brawl on Clifton Street, at around 6.30pm last night.
An eyewitness said two men had their bikes stolen and retaliated which led to a massive brawl.
Drivers can be heard honking their horns at the men urging them to stop.
The fight also took place just metres away from a police station.
A spokeswoman for South Wales Police said: "Officers attended a report of a disturbance in Clifton Street around 6.30pm on Tuesday night. Those involved had left the area but officers are viewing footage to identify those responsible and speaking to a number of witnesses.
"Although no victims have come forward, this kind of behaviour will not be tolerated. If anyone has information, please contact South Wales Police on 101 or Crimestoppers anonymously on 0800 555 111 quoting occurrence number *117392."
On Tuesday, Police enforced a roadblock on the A470 to check drivers heading into Cardiff.
Drivers were stopped on the road into the capital and were asked why they were travelling.
A lockdown is in place across the UK meaning only essential journeys are permitted.