Popular Jacaranda 94.2 breakfast show host Darren Scott has resigned from the radio station amid allegations that he had made a racist remark towards a colleague at the weekend.

In an initial statement released on the station's website, station general manager Kevin Fine said allegations against Scott were being investigated. He did not elaborate or disclose the exact nature of the allegations.

"Jacaranda 94.2 is committed to handling these matters with the appropriate thoroughness and respect for all involved," Fine said.

A little later in the day, a follow-up statement revealed that Scott, a former East Coast Radio presenter, had resigned with immediate effect.

The statement said: "Darren was involved in an incident at the weekend that the station cannot condone. An allegation that he used a racial slur was taken very seriously indeed. Jacaranda 94.2 and its shareholders are committed to upholding the rights of the individuals who work for and with the station."

Scott was already off duty this week as the station had granted him time off to prepare with SuperSport for the start of the Rugby World Cup on Friday.

But in a statement issued on Wednesday night, the pay channel said "SuperSport has granted Darren Scott an indefinite leave of absence from his role as a presenter on its channels, in order that he may focus his attention on personal matters, which have been the subject of recent media reports.

"This follows an earlier discussion between Scott and SuperSport."

Fans on social networks Twitter and Facebook, mostly in support of Scott, directed their dissatisfaction at Jacaranda.