The latest clip comes after  a spate of videos showing racist women ranting on London tubes and is equally unpleasant viewing.

In this offering, the racist tube woman launches into a tirade against Asian passengers on a Central Line train between St Paul’s and Mile End stations.

Screaming at the “f***ing foreigners” the middle-aged white woman makes a string of obnoxious, abusive comments asking passengers, “Where do you come from? F***ing like, f***ing all over the world.”

She continues:  “I’d like to know if any of you are f***ing  illegal, I’m sure 30 per cent of you are. It’s taking the f***ing p***.”

Becoming aggresive, the tube woman – who appears to be drunk – turns to the Asian man sitting next to her and says:  “I shall punch you in the f***ing face. Ninety per cent of you are f***ing illegal. I wouldn’t mind if you loved our country.”

The Youtube video ends with the racist woman trying to attack another passenger before being thrown into a seat. In a second clip she is seen waiting to get off the tube.

A British Transport Police spokesman told the Daily Mail: “BTP is aware of the videos posted on YouTube which show a woman making alleged racist comments on board a Central Line Tube train between St Paul’s and Mile End stations during the evening of Sunday, 23.

“Detectives were made aware of the videos on January 24 and immediately launched an investigation.

“Anyone who witnessed this incident, or who has information which they believe can assist police, is asked to get in touch and help us build up a full picture of what took place.”

Racist women on London transport have become something of a theme over the last few months.

Last December a video of passenger Emma West holding a toddler as she hurled racist abuse on a Croydon tram led to her being charged with a racially aggravated public order offence.

On Youtube the latest video has been met with the usual disturbingly mixed response.

Have you seen anything like this on the London Underground?