The price of Brent crude oil has risen back above $100 a barrel, after plunging on Monday, as conflicting accounts of potential talks between the US and Iran emerged.

On Tuesday in Asia, the oil benchmark rose by 4% to $103.94 (£77.57) a barrel, while Nymex Light Sweet was 4.1% higher at $91.75.

The price of Brent had fallen by more than 10% on Monday after US President Donald Trump delayed and threatened strikes on Iranian power plants, saying Washington had "productive" conversations with Tehran.

But Tehran rejected claims that it had been in contact with Washington, calling them an attempt to manipulate markets.

On Saturday, Trump had said that he would "obliterate" Iranian power plants if the key Strait of Hormuz shipping route was not reopened in 48 hours, with Iran saying it would respond by targeting key infrastructure in the region.

Those comments rattled markets - causing the price of Brent to hit $113 a barrel.

But oil prices plunged, and stock markets rebounded after Trump on Monday said he would hold off strikes, saying Iran and the US had held talks about a "COMPLETE AND TOTAL" resolution.

Global energy markets have seen volatile trading since the US and Israel attacked Iran on 28 February.

However, Asian stock markets, which have also been rocked in recent weeks by the conflict, were relatively stable on Tuesday.

In morning trading, Japan's Nikkei 225 was 0.8% higher, the Hang Seng in Hong Kong was up 1.6%, and South Korea's Kospi rose 2.2%. They had fallen sharply on Monday as Asian countries are heavily dependent on oil and gas that would normally pass through the strait.

Since the war began on 28 February, Iran has effectively blocked the waterway. About 20% of the world's oil and liquefied natural gas usually passes through the strait - and the conflict has sent global fuel prices soaring.

Countries around the world have taken steps to mitigate the impact of higher energy prices and supply disruptions.

The US has temporarily waived sanctions on Russian and Iranian oil already at sea to ease shortages.