Tracey Shipton: VOYCE Chief Executive says latest incidents facing Oranga Tamariki may be the tip of an iceberg - The Mike Hosking Breakfast

An advocate for children in care says the latest incidents facing Oranga Tamariki point to wider issues within the agency.

Children's Minister Kelvin Davis says four staff have been stood down for allowing an MMA-style fight between two young men, and the agency is also dealing with another similar incident in a similar way.

It comes days after youths spent the night on the roof of youth justice facilities in Auckland and Christchurch, and comes weeks after two staff were stood down over sexual misconduct allegations.

VOYCE Chief Executive Tracey Shipton told Tim Dower it may be the tip of an iceberg.

Independent chief executive Mike Bush is carrying out a "rapid review" of the agency.

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