Navy members on board HMAS Ballarat were allegedly experiencing weird hazing rituals which involved inserting carrots, pens and bananas to their anus.

In a report from Channel Ten, a former Navy member named "Bridget" revealed that young sailors on board the HMAS Ballarat ship cannot take their situations anymore. She said that this abhorring anal hazing usually happens during the young sailors' birthdays.

"People were set upon by members and stripped off and had things essentially put in their bums," Bridget told Channel Ten.

Indeed, one sailor suffered as the lid of the pen inserted was left behind in his anus.

"A whiteboard lid came off in his bum and that was the one who ran out screaming ... because his bum was bleeding," Bridget said.

Bridget's friends, who were still in the navy, asked her to expose their situations onboard because they were afraid to do so.

"I think people are scared. If it happened in a normal workplace, the police would be called, charges would be laid," Bridget said.

The Department of Defence announced that an investigation into this "inappropriate behaviour" is already underway.

In an official statement from Defence, it confirmed that the HMAS Ballarat is already at the centre of the investigation.

According to Defence, HMAS Ballarat is an Anzac Class Frigate and is currently assigned on border protection operators. Due to the nature of Ballarat's location, the Australian Defence Force Investigative Service (ADFIS) investigators will not be able to join the ship for several days.

Hence, investigation remains in its early stages. Defence said that the Navy will not be authorised to comment about the issue awaiting the completion of the investigation.

"Allegations such as these are serious and it is critical that the investigative process is properly followed. As such I will not speculate on any aspect of the allegations. We have dealt with the allegations swiftly and I reiterate that inappropriate behaviour is not consistent with our values and is not tolerated in Navy. Navy is being as open and transparent as it can about this incident within the limitations of the investigative process," stated Chief of Navy Vice Admiral Ray Griggs.