The National Party's deputy leader says potentially hundreds of cancer patients have had procedures disrupted by Covid-19, and their lives are at risk.
Dr Shane Reti said the Ministry of Health will not say how many patients have been affected.
He has obtained numbers from four of the 20 district health boards so far, which show 85 cancer patients have had their procedures cancelled or delayed since lockdown began.
He said those people need to be prioritised urgently as the patient backlog is worked through.