"Extreme weather event has come on the back of extreme weather event," said New Zealand Prime Minister Chris Hipkins, who announced a NZ$11.5m (£6m; US$7.3m) aid package."Things are likely to get worse before they get better."Emergency management minister Kieran McAnulty told a media briefing on Monday that the government is considering declaring a national state of emergency for only the third time in the country's history.