A Twitter video of a woman on her cell phone has gone viral because she seems to be calling the cops on a black girl selling water on the sidewalk.

The video appears to be shot near San Francisco's AT&T Park before the Giants' Saturday afternoon game against the San Diego Padres, where a young girl was announcing 'Cold water for two dollars'.

'So my little cousin was selling water and didn't have a permit so this lady decided to call the cops on an 8 year old,' wrote Twitter user Raj (@_ethipiangold) alongside a video of the confrontation.

Raj refers to the woman as #PermitPatty.

A woman (left) has been condemned online after she allegedly called the police on an eight-year-old girl (right) who was selling bottled water on the sidewalk in San Franciscio

The original tweet, as the camera rolls, the woman ducks down behind a wall but continues to call cops

The woman in the video is seen pacing on the phone, and then when she realizes there is a camera on her she ducks behind a wall.

Although Raj asserts that the woman is speaking with police, it isn't clear from the video whom the woman is talking to on the phone.

When the camera catches up with her she says to the person shooting the video, 'yeah, illegally selling water without a permit.'

When the person shooting the video says that the girl is selling water on her own property, the woman says 'its not your property' as she walks away.

The video has made the rounds, raising noisy indignation and supportive comments for the girl.

Actress Gabrielle Union chimed in, tweeting: 'This woman asks to speak to somebody's manager on the daily. She permanently wears folks OUT'.

Online sleuths claimed to have identified the woman in the video. The woman they named and her employer, a cannabis dispensary, were immediately subjected to a torrent of online outrage and abuse.

The person who posted the video also posted a split image of the woman who called cops on the people having a barbecue (left) in April, and the woman allegedly calling cops today (right)

Another Twitter user posted this idea, a water bottle with 'Permit Patty's' face on it

Actress Gabrielle Union tweeted her opinion, that the woman on the video 'wears folks OUT'

Raj has been posting updates, sharing that the little girl is doing just fine, even sharing a picture of her with her cooler of water.

She said that while the woman called the police, no officers showed up because 'clearly it wasn't that serious.'

She also revealed that a scammer posing as her had tried to capitalize on the buzz by soliciting donations on Twitter.

'Y'all please DO NOT send money through that paypal that is somebody pretending to be me,' she wrote.

Several people on Twitter compared the case to the woman who called 911 in April over a group of black people illegally barbecuing in a park in Oakland, California.

She was dubbed 'bbqbecky' online, in reference to the derisive term 'Beckys' for white women.

The Giants beat the Padres 5-3 on Saturday. Reyes Moronta was the winning pitcher, and the losing pitcher was Adam Cimber.