Sydney School students reportedly from Georges River College have been caught on camera harassing a disabled man on a train. Courtesy: Chelsea Jane/Facebook

POLICE are investigating the harassment of a developmentally disabled man on a Sydney train on Monday after video of the incident was widely shared on social media overnight.

The video — which has now been viewed more than 300,000 times — shows a number of students from Georges River College in Oatley, in the St George region of southern Sydney, abusing a young man who is standing on his own near the door of the train.

Passenger Chelsea Jane secretly filmed the abuse and posted the 35-second video to her Facebook page.

A NSW Police spokeswoman confirmed to The Daily Telegraphthat officers from the Transport Command had launched an investigation into the sickening attack on the man and were calling on any witnesses to come forward.

ABSOLUTE FILTH

One of the students, who appears to be the ringleader of the group, can be heard yelling at the man as he pretends to talk on the phone and avoids looking at them.

The group mocked his clothes and were “shouting in his face,” Ms Jane wrote, who said there were about “10 of their mates” watching on.

Ms Jane, who wrote in her Facebook post that she was ‘fuming’ while filming, said she was ‘absolutely disgusted’ by the actions of the young group and said she would have stood up if fear of reprisal hadn’t held her back.

“How DARE these disrespectful pigs (in GRC Oatley uniforms) mock and taunt a disabled passenger. F***ing pathetic,” she wrote.

“I am absolutely disgusted by what just happened and if I didn’t fear for my own safety around these losers I would’ve gone down there to put a stop to it myself. Absolute filth.”

Anthony Hughes, who had the victim in his music therapy class for many years, wrote of his disgust at the attack on Facebook.

“I generally never share any “Name and Shame” video’s (sic). But the guy with the learning difficult that they are mocking, was in my music therapy class for four years. I know him and he’s an absolute ball of sunshine and I feel blessed to know,” he wrote.

The Department of Education confirmed the student were from the Oatley school.

The school has been the centre of controversy in the past with a female teacher injured early last year while trying to break up a fight between two teenagers.

Police descended on the school at the time and stepped up patrols after suggestions the fight may have been religiously motivated.

Police are calling on any other passengers who witnessed the attack to call Crime Stoppers on 1800 333 000.