There were five in Auckland, two in Waikato, one in Hawke's Bay, two in Wellington and one in Canterbury.
Director-General of Health Ashley Bloomfield said that brought New Zealand's total to 39 positive cases.
Patient 29: Details to come. Now in Auckland.
Patient 30: Arrived in Christchurch on March 15 from Los Angeles on flight American Airlines AA83 to Auckland. Then caught flight Air New Zealand NZ535 to Christchurch. Now in Canterbury. A man in his 50s.
Patient 31: Arrived in Wellington on March 14 from London on flight Singapore Airlines SQ321 to Singapore. The flew to Wellington on flight Singapore Airlines SQ247 via Melbourne. Now in Wellington. A man in his 40s.
Patient 32: Arrived in Napier on March 17. Munich to Qatar on flight Qatar Airways QR58, then from Qatar to Auckland on flight Qatar Airways QR920. Then Auckland to Napier on Air New Zealand flight NZ5021. Now in Hawke's Bay. A man in his 30s.
Patient 33: Arrived in Auckland from Paris on Emirates EK74 to Dubai, to Auckland on flight Emirates EK450. Now in Waikato. A man in his 60s.