U.S. Seizes Iranian Ship, Oil Surges 7% on Escalation
The U.S. Navy seized an Iranian-flagged cargo ship in the Gulf of Oman after it refused to halt, with Marines taking custody, according to President Trump. Iran simultaneously rejected a new round of peace talks proposed by the U.S., escalating tensions as a ceasefire deadline approaches. Stock futures tumbled with the Dow shedding 425 points, while oil prices surged 7% to $90.33 per barrel. Trump also threatened to bomb Iranian infrastructure if no deal is reached.
Apr 19th 2026 · United States
President Donald Trump announced Sunday that the U.S. struck and seized an Iranian-flagged cargo ship called the TOUSKA in the Gulf of Oman after it refused to stop when warned. The vessel was fired upon when it ignored a U.S. Navy order to halt, with Marines now taking custody of the ship, according to Trump. The seizure came as Iran rejected a new round of peace talks proposed by the U.S. in Pakistan, further escalating tensions between the two nations. A ceasefire between the U.S. and Iran is set to expire this week. Stock futures tumbled Sunday night following the news, with the Dow Jones Industrial Average shedding 425 points and both S&P 500 and Nasdaq-100 futures falling roughly 0.8% to 0.9%. Oil prices surged in response, with West Texas Intermediate futures jumping 7% to $90.33 per barrel and international Brent crude climbing 7% to around $96.85 per barrel. The dollar also rose Monday morning as the U.S. dollar index recovered from Friday lows. Meanwhile, Trump threatened to bomb all power plants and bridges in Iran if the country does not agree to a deal with the U.S. The Strait of Hormuz, a critical shipping lane for global crude and gas shipments, was reopened briefly by Iran on Friday before being restricted again by Saturday, with state media reporting that the U.S. had not fulfilled its obligations. The blockade will remain in place until Iran agrees to U.S. demands. Markets are now unwinding much of the gains from last week, when the S&P 500 gained 4.5% and the Nasdaq climbed 7.2% on news of the initial ceasefire between Iran and Lebanon. Market strategists noted that despite the escalation, investors are watching for signs that negotiations continue. Quarterly earnings season continues this week, with major companies including Tesla, Boeing, and Intel set to report.
Sources
- Dow futures drop 400 points as Iranian war tensions escalate: Live updates www.cnbc.com
- Oil Prices Jumped and Stock Futures Fell on Renewed Iran Conflict www.nytimes.com
- Oil jumps and stock futures slip as Iran tensions unsettle markets www.channelnewsasia.com
- Oil prices jump as Strait of Hormuz tensions escalate www.bbc.com
- Oil prices jump: Brent rises to $96.30, WTI at $90.22 as Tehran rejects 2nd round of US-Iran talks gulfnews.com
- Trump news at a glance: Oil price surges again as Iran accuses US of breaking ceasefire www.theguardian.com
- 'Vibes all the way down': Iran’s swipe at US comes with oil market warning amid Hormuz tensions timesofindia.indiatimes.com
- How the Iran war could hurt Wall Street www.ft.com
- Asia growth forecasts slashed as Iran war and tariffs threaten supply chains www.scmp.com
- The economy amid the US-Iran war www.dawn.com
- Over 3,300 people have died in Iran during war www.independent.co.uk
- Stock Market Today: Dow Futures Slip, Oil Climbs as Tensions Over Hormuz Continue www.wsj.com
- Fresh uncertainty over US-Iran war sends oil price back up www.independent.co.uk
- Stock markets fall again as investors warned over more Iran war volatility www.independent.co.uk
- PSX plunges over 1,700 points amid Middle East tensions www.dawn.com
- U.S. stock futures tumble as Iran refuses Trump’s ‘deal’ and Strait stays shut fortune.com
- STI inches up 0.1% even as Iran conflict keeps investors on edge www.straitstimes.com
- Volatile stock markets plummet amid more Iran war turmoil www.independent.co.uk
- Investors are misreading news about the Iran war, analysts say as markets whipsaw www.cnbc.com