Oil prices are rising in early trading as a standoff between Iran and the U.S. prevented tankers from using the Strait of Hormuz. The price of U.S. crude oil increased 6.4% to $87.90 per barrel an hour after trading resumed on the Chicago Mercantile Exchange. The price of Brent crude, the international standard, climbed 5.8% to $95.64 per barrel. The market reaction followed more than two days of lifted hopes and dashed expectations involving the strait. Crude prices plunged more than 9% on Friday after Iran said it would fully reopen the strait to commercial traffic. The country's government reversed course on Saturday after the U.S. vowed to maintain a naval blockade of Iranian ports.

Federal prosecutors say a 44-year-old Los Angeles woman was arrested Saturday night at Los Angeles International Airport on suspicion of helping Iran traffic weapons to Sudan, which is in its fourth year of a bloody civil war. First U.S. Attorney Bill Essayli said Sunday on social media that the woman will face charges that she brokered the sale of “drones, bombs, bomb fuses, and millions of rounds of ammunition” between Iran and the Sudanese Armed Forces. She is an Iranian national who became a lawful permanent resident of the United States in 2016. The defendant is scheduled to appear in U.S. District Court in Los Angeles on Monday.

President Donald Trump says U.S. negotiators will head to Pakistan on Monday for another round of talks with Iran. The aim is to extend a fragile ceasefire set to expire by Wednesday. Iran has not confirmed the talks but has said it remains open to diplomacy. The White House says Vice President JD Vance will again lead the U.S. delegation after 21 hours of historic face-to-face talks last weekend. The Strait of Hormuz remains a point of contention, with Iran blocking transit amid a U.S. blockade. The conflict has severely impacted global supplies of oil, fertilizer and natural gas.

As the U.S. and Israel’s war with Iran squeezes global oil supplies, travelers have valid reasons to worry about the cost and availability of flights as they plan their late spring and summer trips. Experts say booking earlier, and staying flexible on dates, destinations and departure airports can help reduce costs. Packing light means avoiding rising baggage fees. Using airline points or signing up for a travel credit card are other ways to make flights more affordable. Travel experts caution consumers against purchasing Basic Economy tickets, though. Even though they are the cheapest, they may rule out refunds or credits if passengers need to cancel.

Spanish Prime Minister Pedro Sánchez has hosted two events in Barcelona to rally progressive leaders from around the world who fear for a rules-based world order. Sánchez and other attendees are outspoken critics of U.S. President Donald Trump. Trump chose Saturday to lash out on social media again at Sánchez, who has faced Trump’s scorn for not allowing the U.S. to use jointly operated military bases in Spain for operations related to the Iran war and for refusing to raise military spending. Democrats U.S. Sen. Chris Murphy and Minnesota Gov. Tim Walz were both present alongside the leaders of Brazil, South Africa, and high-ranking officials of other left-leaning governments.

French President Emmanuel Macron says a French soldier was killed and three others wounded in an attack on U.N. peacekeepers in southern Lebanon. Macron identified the soldier as Staff Sgt. Florian Montorio from the 17th Parachute Engineer Regiment. He added that three of Montorio’s comrades were wounded and evacuated. He said that Hezbollah is likely responsible for the attack. Macron demanded that Lebanese authorities arrest those responsible and work with UNIFIL, the U.N. mission in southern Lebanon. Macron expressed respect and support for the families of the soldiers and all military personnel in Lebanon.