Oil rises 6% and Asian stocks fall after Trump says US will hit Iran hard and 'finish the job'

“We are going to hit them extremely hard over the next two to three weeks. We’re going to bring them back to the Stone Ages, where they belong,” Trump said in his address.

Trump did not mention a looming deadline he set for Iran to open the Strait of Hormuz, the critical waterway for global oil and gas transport, after he threatened Iran earlier with U.S. attacks on its energy infrastructure if the strait was not reopened. He did not offer a clear path to end the supply disruptions that have sent energy prices soaring.

Tokyo’s Nikkei 225 was down 2.4% to 52,463.27 on Thursday. South Korea’s Kospi lost 4.5% to 5,234.05, also after government data showed consumer prices in March rose 2.2% from a year earlier on soaring fuel costs.

Hong Kong’s Hang Seng fell 1.3% to 24,965.07, the Shanghai Composite index was down 0.9% to 3,913.88.

Australia’s S&P/ASX 200 dropped 1.1% to 8,579.50.

Taiwan’s Taiex was trading 1.8% lower, while India's Sensex lost 1.9%.

U.S. futures were down more than 1.2%.

Oil prices were sharply higher following Trump’s remarks. Brent crude, the international standard, jumped 6.9% to $108.15 per barrel. Benchmark U.S. crude rose 6.4% to $106.55 a barrel.

“The market has shown disappointment because the speech President Trump made was far less than what the market expected," said Takashi Hiroki, chief strategist at Monex in Tokyo. "There were no concrete details about the end of the hostilities with Iran.”

“What the market wants is a clear outline for the ceasefire," he said.

Gold and silver prices fell. Gold's price was down 4% to $4,621.30 per ounce, falling below the $4,700 mark. Silver lost 7.3% to $70.53 an ounce.

Renewed optimism on Wednesday for a possible end to the Iran war pushed world stocks higher, after Trump said late Tuesday the U.S. military could end its offensive in two to three weeks.

On Wednesday, the S&P 500 added 0.7% to 6,575.32. The Dow Jones Industrial Average rose 0.5% to 46,565.74, and the Nasdaq composite climbed 1.2% to 21,840.95.

Shares of Eli Lilly jumped 3.8% after the U.S. Food and Drug Administration approved its GLP-1 pill for weight loss. Nike plunged 15.5% despite better-than-estimated quarterly profit on expectations of weaker sales.

In other dealings early Thursday, the U.S. dollar rose to 159.35 Japanese yen from 158.82 yen. The euro was trading at $1.1534, down from $1.1589.

Associated Press journalists Stan Choe, Matthew Daly, Kim Tong-hyung and Mayuko Ono contributed to this report.