Police cordoned off part of the road near the Circle roundabout in Carshalton after a fight broke out at 3.30pm on Friday, January 17.
Four women aged between 18 and 21 were arrested on suspicion of assault and public order offences.
They were taken to Sutton Police Station and were each issued with a fixed penalty notice of £80.
There were no reports of any significant injuries.
- POLL RESULT: Big majority of you want to remain in EU as Article 50 triggers Brexit
- Calls for speed cameras to be introduced after car flips over in Cheam
- Twenty firefighters tackle fire at block of flats in Sutton
- MPs warn of falling school standards amid savings drive 'delusion'
- UK to begin 'momentous journey' today as Prime Minister Theresa May triggers Article 50