Auckland beaches flagged due to sewage overflows
In this story NZME, Auckland Council, SafeSwim

Thirteen central Auckland beaches have been marked with black flags following sewage overflows. The water quality issues were caused by thunderstorms over the weekend. SafeSwim has warned swimmers to stay out of the affected areas.
How they headlined it
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The Press via RNZAuckland beachgoers warned of sewage overflows (opens in new tab)
Also on Stuff (opens in new tab), The Post (opens in new tab), RNZ (opens in new tab), Waikato Times (opens in new tab)
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NZ HeraldAuckland beaches sewage overflows: SafeSwim warns swimmers to stay out (opens in new tab)