Oil prices sank and stock markets jumped Tuesday, even as uncertainty reined over a Israel-Iran ceasefire.

In volatile trading, crude futures slumped more than five percent after US PresidentDonald Trump's declaration of aceasefire.

The oil market went on to reduce its losses, however, asIsrael and Iranaccused each other of breaking the ceasefire -- news confirmed by Trump.

The president berated the two sides, adding that he was "really unhappy" withIsraelin particular.

Despite tensions igniting once more, oil prices were still down more than three percent by early afternoon trading inEurope.

"Investors are reacting with relief to apparent news of a US-brokered ceasefire betweenIranand Israel," noted AJ Bell investment director Russ Mould.

"Gold slipped back as its safe haven attributes were less in demand," Mould said, adding that the news weighed on share prices of oil producers and miners.

The dollar retreated against main rivals after Trump once more demanded that the USFederal Reservecut interest rates in a bid to boost the world's biggest economy.

Escalating tensions in the Middle East has removed some focus from Trump's tariffs war, which threatens to dampen global economic growth.

InGermany, where the DAX stocks index rallied 1.9 percent, ChancellorFriedrich Merzurged Iran and Israel to follow the ceasefire announced by Trump.

"We call on both Iran and Israel to heed this call from the American president," Merz told parliament.

"If this ceasefire succeeds... then it will be a very positive development that can make theMiddle Eastand the world safer."

French PresidentEmmanuel Macronsaid Tuesday that the situation surrounding Iran remained "volatile and unstable".

There are fears that Iran could shut theStrait of Hormuz, a chokepoint for about one-fifth of the world's oil supply.

Rystad Energy analyst Jorge Leon told AFP that he believed the risk of the waterway shutting had diminished despite Iran launching missiles at a US base inQatarin retaliation for American strikes on Tehran's nuclear facilities.

Trump dismissed the attack as "very weak", and said Iran gave "early notice", adding no one was hurt or killed.

"I think the risk of closing Hormuz now has diminished rapidly because US and Iranian tension is already over," Leon argued.

"I think it's more about what happens just between Israel and Iran."

Key figures at around 1115 GMT

WestTexasIntermediate: DOWN 3.1 percent at $66.38 per barrel

Brent North Sea Crude: DOWN 3.2 percent at $68.30 per barrel

London- FTSE 100: UP 0.3 percent at 8,786.54 points

Paris- CAC 40: UP 1.2 percent at 7,625.70

Frankfurt - DAX: UP 1.8 percent at 23,686.87

Tokyo -Nikkei225: UP 1.1 percent at 38,790.56 (close)

Hong Kong- Hang Seng Index: UP 2.1 percent at 24,177.07 (close)

Shanghai - Composite: UP 1.2 percent at 3,420.57 (close)

New York- Dow: UP 0.9 percent at 42,581.78 (close)

Euro/dollar: UP at $1.1596 from $1.1581 on Monday

Pound/dollar: UP at $1.3606 from $1.3526

Dollar/yen: DOWN at 145.06 yen from 146.12 yen

Euro/pound: DOWN at 85.22 pence from 85.60 pence

(FRANCE 24 with AFP)

Originally published on France24