Recovery workers are seen at New Zealand’s White Island last December. A volcanic eruption on the island killed 22 people and has led to work safety charges against tour operators.

WHAKATANE, NEW ZEALAND – DECEMBER 13: In this handout image provided by the New Zealand Defence Force, recovery operation at Whakaari/White Island on December 13, 2019 in Whakatane, New Zealand. Six bodies have been successfully recovered from White Island and are now on board HMNZS Wellington. Eight people have been confirmed dead following a volcanic eruption at White Island on Monday. (Photo by New Zealand Defence Force via Getty Images)