Former Israeli soldier Avi Yemini (left) and far right activist Neil Erikson (right)

Police are investigating an offensive text message calling a former Israeli soldier a 'dirty Jew' and a 'kike' amid claims it was sent by a prominent far-right activist.

Melbourne gym owner and activist Avi Yemini received the offensive text on January 23, which said: 'You dirty jew. Kike.'

The text was quickly followed by: 'Omg! I'm so sorry. That was not me. That was Neil.'

The messages came from the phone of a female friend of far right activist Neil Erikson, Dia Beltran.

Mr Yemini alleged Mr Erikson sent the message and claimed it was proof of Mr Erikson's anti-Jewish views and that he was 'no Aussie hero'.

But Mr Erikson said he is a 'reformed neo-Nazi' and strenuously denied sending the message.

He said Mr Yemini was 'acting like a hysterical woman' by going to the police.

Mr Yemini, 33, made a statement to Victoria Police on Friday, after first publishing the text message to social media.

Victoria Police are investigating this text message calling Avi Yemini a 'dirty Jew'

Far right activist Neil Erikson (in hi-vis) denied sending the text and said Mr Yemini was acting 'like a hysterical woman'

The text divided right wing activists who variously slammed Mr Erikson as 'immature' and others who questioned whether the text was authentic.

'People need to see him for what he is and he's no Aussie hero,' Mr Yemini told Daily Mail Australia.

'He's no Aussie hero.'

'He does say some things that are right and that's where people get confused'.

'He says some things that are right, that's how he's sucking people in, by saying the things our politicians and ruling class are refusing to address.

'Someone like Neil walks in and says it and the undertone on many of those issues are anti-Jewish because that's really what he's about,' he claimed.

Mr Erikson said: 'What I've heard is one of his (Avi's) mates grabbed Dia's phone and texted Avi off the phone and basically said "this is Neil".

'I don't know if Avi's trying to get some media attention or drag me down but it definitely wasn't me.

'He's been making false allegations about me for a long time now.

The offensive text message was sent from the phone of Dia Beltran (pictured) who did not 'want to be dragged into' the issue

A police line at St Kilda amid dueling demonstrations between right and left-wing activists earlier this year which Mr Erikson was prominent at

'I wouldn't deny it if I did it... the police are investigating.' Ms Beltran said she didn't 'want to be dragged into' the issue.

A Victoria Police spokeswoman confirmed officers are investigating a report of an 'offensive' text message, but could not comment further as the investigation is ongoing.

'All Victorians have a right to feel safe and secure in their community. Victoria Police does not tolerate discrimination or victimisation, including that which is motivated by prejudice, racism or discrimination,' she said.

'Anyone who witnesses or is subject to victimisation on the basis of ethnicity or religious beliefs is urged to report the matter to police.'