Morning mail: Melbourne mystery Covid case, plundering the Pacific, the return of Crowded House

Monday: Concern after Victorian healthcare worker in aged care tests positive. Plus: the Guardian investigates the projects taking a toll on Pacific island nations

Good morning - it's already the last day of May! Melbourne's Covid cluster is now at 40, there are calls for Australia to rethink skilled immigration, and one country is dominating the exploitation of Pacific resources. This is Imogen Dewey with today's main stories and some tips for safe gardening.

Victoria yesterday confirmed five new locally acquired Covid infections - including one extremely concerning" mystery case in aged care - on day three of its fourth lockdown. The acting premier, James Merlino, said every state business owner should be angry that the federal government had rejected calls to provide additional financial support during the state's fourth lockdown, as the cost to the economy was estimated to hit $700m. Merlino spoke for Australia, writes Katherine Murphy, when he expressed incredulity over the deputy prime minister, Michael McCormack, continuing to tell people the vaccine rollout was not a race" (more on that below).