Oil Prices moved higher again after a sharp escalation in the Middle East sent fresh shockwaves through Global markets. Energy disruptions are adding to volatility across international financial markets, with traders closely watching every new move tied to Iran, the Strait of Hormuz and the Trump administration’s response.

The latest surge came after the United States attacked and seized an Iranian-flagged cargo ship near the Strait of Hormuz on Sunday. Iran’s joint military command vowed a swift response, saying the action could not go unanswered and warning that the fragile ceasefire was now in danger just days before it was set to expire.

US Navy Seizes Iranian-Flagged Ship Near the Strait of Hormuz

The ship seizure marked the first interception since the U.S. blockade of Iranian ports began last week. Trump said on social media that a U.S. Navy guided missile destroyer in the Gulf of Oman warned the Iranian-flagged ship, the Touska, before stopping it “right in their tracks by blowing a hole in the engineroom.” He also said U.S. Marines had custody of the U.S.-sanctioned vessel and were checking what was on board.

It was not immediately clear whether anyone was hurt. The U.S. Central Command did not answer questions, but said the destroyer issued repeated warnings over a six-hour period.

Iran’s military command called the armed boarding an act of piracy and a ceasefire violation, according to state broadcaster reports. The response from Tehran made clear that the standoff over the strait remains one of the most dangerous flashpoints in the region.

Oil Prices Today: Why the Market Is Under Pressure

The uncertainty surrounding the ship seizure sent Oil Prices higher once again. The movement added to fears that one of the worst global energy crises in decades could deepen even further.

The situation is especially serious because:

Roughly one-fifth of the world’s oil trade normally passes through the Strait of Hormuz.
The strait also carries critical fertilizer supplies, natural gas and humanitarian aid.
Hundreds of vessels were reported waiting at each end for clearance.
The blockade is squeezing already fragile shipping routes and raising market anxiety.

Trump’s comments on social media also added to the pressure. At the same time as the seizure was being described, he linked the operation to broader military goals and repeated threats against Iranian infrastructure. He wrote that if Iran did not agree to the U.S.-proposed deal, the United States would “knock out every single Power Plant, and every single Bridge” in Iran.

Iran Pushes Back as Talks Become Unclear

The timing of the seizure raised new questions about Trump’s earlier announcement of talks with Iran. It was unclear where those plans now stood, even though he had said U.S. negotiators would head to Pakistan on Monday.

Iranian state media, without naming sources, suggested the talks may not happen. Minutes after the ship seizure announcement, reports said President Masoud Pezeshkian had spoken with Pakistan’s prime minister, Shehbaz Sharif, and warned that U.S. actions had increased suspicion that Washington would betray diplomacy again.

Iran’s Foreign Minister Abbas Araghchi also told Pakistan’s Ishaq Dar that recent U.S. actions, rhetoric and contradictions showed “bad intentions and lack of seriousness in diplomacy,” according to the state broadcaster.

Global Markets Stay on Edge as Iran and the U.S. Trade Blame

The ceasefire remains fragile, and both sides are accusing each other of violating it. Two earlier attempts at talks, one last June and another earlier this year, were already interrupted by Israeli and U.S. attacks.

At the same time, Pakistan had not confirmed a second round of talks, even though security in Islamabad had been tightened. A regional official said mediators were still finalizing preparations and that U.S. advance security teams were already on the ground.

The White House had said Vice President JD Vance would lead the U.S. delegation to Pakistan, joined by envoys Steve Witkoff and Jared Kushner. Iran also said on Saturday that it had received new proposals from the United States. But chief negotiator Mohammed Bagher Qalibaf said there would be no retreat in diplomacy, while admitting the gap between both sides remained wide.

Why the Strait of Hormuz Matters

The Strait of Hormuz is now at the center of the conflict. Iran has said it wants control of the strait until the war fully ends. Mohammad Reza Aref, Iran’s first vice president, said the choice was clear. Either a free oil market for all, or the risk of major costs for everyone.

Iran’s Supreme National Security Council said late Saturday that Iran is determined to keep oversight over traffic through the strait until the war is over. That would mean Iranian-designated routes, payment of fees and transit certificates for ships.

Trump had earlier said the U.S. blockade would remain in force until Tehran reached a deal with Washington. Iran then said it would once again enforce restrictions imposed early in the war. And on Saturday it fired at ships trying to pass through the strait.

Oil Prices, War Pressure and Human Cost

The conflict is now in its eighth week after the U.S. and Israel launched it on Feb. 28 during talks over Iran’s nuclear program. The toll has been severe.

At least 3,000 people have been killed in Iran.
More than 2,290 have died in Lebanon.
23 people have been killed in Israel.
More than a dozen have been killed in Gulf Arab states.
Fifteen Israeli soldiers in Lebanon and 13 U.S. service members across the region have also been killed.

With the blockade still in place, ships remain unable to move through the strait freely. That is keeping oil supply fears alive and adding more pressure to Oil Prices today, Global markets and the wider Middle East outlook.

Follow TNN for more coverage of Oil Prices, Trump, Iran, Global markets, the U.S. Navy and the Middle East. Stay tuned for the latest Oil Prices updates, Global news, US news today and Canada news today.