The Australian share market has suffered its worst day in five weeks following a trade row between Japan and South Korea and concerns that the US won’t deliver on interest rate cuts.

The benchmark S&P/ASX200 index finished down 79.1 points, or 1.17 per cent, to 6,672.2 points at 1615 AEST on Monday, while the broader All Ordinaries was down 74.4 points, or 1.09 per cent, to 6,757.4.

The Aussie dollar is buying 69.85 US cents, from 70.17 US cents on Friday.