The New Zealand share market joined with others around the Pacific Rim to trade lower after rising trade tensions between the US and China drove the US share market down by 2.9 per cent overnight.
By mid afternoon, NZX-50 index was off by 1.9 per cent at 10,565 but other markets around the region fared worse in wake of the yuan's depreciation, the worsening state of Sino-US relations and rising concerns over civil unrest in Hong Kong.
In Australia, the ASX-200 index was down by 2.4 per cent and Japan's Nikkei 225 was down 2.9 per cent.
In Hong Kong, MSCI Hong Kong Index fell by 3 per cent, heading for a 10th straight decline, a day after a general strike led to traffic chaos, violence, tear gas and flight cancellations.
Matt Goodson, managing director at Salt Funds Management, said a weaker Chinese yuan would make New Zealand and Australia's exports more expensive in China.