US President Donald Trump said the US-Iran ceasefire was "over", sending oil prices higher amid fears of supply disruptions.

Brent crude futures were a long way below the war's peak prices but rose enough to wobble the bond market by increasing inflation risks.

Brent crude jumped 6.2 per cent to US$78.74 a barrel as at 5pm Singapore time. Read more at straitstimes.com. Read more at straitstimes.com.