The dollar clings to its highest levels of the week against most of its peers at the start of trading in Asia as the US renewed strikes on Iran, renewing geopolitical tensions and sending oil prices higher, according to Reuters.
The dollar index, which measures the greenback’s strength against a basket of six currencies, traded at 101.18, its highest level since July 2.
The kiwi dollar was 0.1 per cent stronger at $0.5681 ahead of a decision by the Reserve Bank of New Zealand later at which it is narrowly expected to raise interest rates for the first time in more than three years.
Against the yen, the US dollar strengthened 0.1pc to 162.28 yen.
The euro slips 0.1pc to $1.1405, while the British pound nudged 0.1pc lower to $1.3353.
The Australian dollar was steady at $0.6926.
Bitcoin was down 0.2pc at $63,518.35, while ether was 0.5pc lower at $1,774.45.