New Zealand school teachers went on strike for the first time in more than 20 years.

Iran Press/Asia: Almost 30,000 primary school teachers did not turn up to work on Wednesday and held protests across the country, leaving parents of children aged 5 to 13 at public schools scrambling to find childcare.

NZEI, the union that represents teachers announced in a statement,has asked for a 16 percent pay increase for teachers over two years, whereas the government has offered between 6.1 and 14.7 percent pay rises, depending on experience, over three years.

The action comes in the wake of a one-day nationwide nurses' strike in July and a series of smaller actions by government workers, challenging Ardern's center-left government, which ended almost a decade of center-right National Party rule in October.

The government's first budget in May was stretched to fulfill its promise to juggle investing in much-needed infrastructure with a self-imposed rule to pay down debt and insulate the economy from potential shocks.

Wage growth has remained sluggish in the island nation for years, despite soaring housing costs, which labour groups and economists say has left workers struggling despite robust growth.

The government is also struggling with gloomy business confidence, which has sunk to decade lows and contributed to a surprise signal from the central bank on Thursday that it planned to keep rates on hold into 2020 and saw downside risks to its growth forecasts.