Two MediaWorks employees have reportedly been stood down as investigations into workplace misconduct are being carried out.
The radio company is investigating after allegations were made on an anonymous Instagram account.
In dozens of different submissions unnamed hosts and stations have been accused of racism, sexism, misogyny, harassment and perpetuating a "boys club" that left female workers feeling unsafe and powerless.
According to Stuff, one of the two men stood down holds a "high-profile on-air position". The news outlet reports images and mentions of the man have been removed from a MediaWorks website.
In response to Newshub, a MediaWorks spokesperson said there were "inaccuracies" in the Stuff report, but did not clarify what they were.
"Earlier this month, we commenced an investigation into allegations relating to our business," the spokesperson said.
"In addition to this, we announced we would be engaging an independent investigator to conduct a thorough review of historic events and our current workplace culture and practices.
"Maria Dew QC was appointed to run this independent investigation. In regards to the internal investigation, our People and Culture Director is Alex Nicholson. She leads our investigations, in conjunction with her HR team.
"This process is being run in accordance with New Zealand employment laws. We are regularly communicating with staff in a number of ways about the investigation which relates to our business.
"We have let staff know that, at times, we may be limited in what we can share given it relates to individual employees due to privacy laws. Of course, anyone who is directly impacted by this investigation is being communicated with regularly in confidence."
MediaWorks, which owned Newshub until late 2020, initially released a statement when the allegations were first reported on earlier this month.
At the time, a spokesperson for rival radio company NZME also confirmed an internal email was sent to its staff advising them management was aware of the social media posts. The email was intended to reassure staff "that the alleged behaviours had no place at NZME", the spokesperson said.