A shocking video posted online of a rowdy mob ganging up on a group of French tourists for singing in their native tongue on a Frankston bus has gone viral.
Passenger Mike Nayna captured the ugly racist attack on his phone as passengers verbally abused the girl for singing a song in French during a replacement bus ride from Edithvale about 10.30pm on Sunday, November 10.
Within a day of being posted on video sharing website YouTube, the video has drawn almost 346,000 views.
"It was just this weird racial rant that went on too long," Mr Nayna told Seven News.
It is understood the woman was among a group of backpackers who initially mistook the torrent of abuse for friendly rivalry, but it quickly turned nasty.
In the amateur footage, passengers can be heard yelling at the French girl and her mates to 'get off the bus', with some even threatening to kill them.
In a shocking display of racism, one of the passengers can be heard saying 'speak English or die motherf***er'.
Mr Nayna said the abusers were feeding off one another, describing the ordeal as 'mob mentality'.
"There were other passengers giving the main guy beer. They were just fueling each other," Mr Nayna said.
"It was mob mentality and sad to see."
Mr Nayna said he uploaded the video to YouTube in an attempt to shame those responsible for the attack.
One of the abusive men smashed a bus window when he got off.