Joint Head of MIQ Brigadier Rose King says they escaped about 4.45pm yesterday and MIQ is working with Police to locate them.
This follows a man who allegedly absconded from the Novotel and Ibis Ellerslie just before 1pm yesterday.
He was found within half an hour and is due to appear in court tomorrow.
Brigadier King says the fact people have absconded from two facilities is a disappointing and unacceptable breach, and they're investigating how these events occurred.