U.S.-Canada relations, already tense, are likely to deteriorate further after the United States went ahead early Tuesday with a decision to ban nearly $1 billion worth of Canadian imports, including alcoholic beverages, dairy products and motorcycles.

The ban amounts to barely a ripple in $880 billion worth of a two-way annual trade between the two northern neighbors. But it marks another ratcheting up of President Donald Trump's second-term trade war with America's longtime ally and trading partner.

There is doom. There is gloom. There is mistrust. There is insistence upon shared power and the prevention of political and military bullying. And there is a growing cry for permanent seats at the table of power — for island nations threatened by climate change and, more than anything, for Africa.

These things have often been true in recent years when world leaders orate at one another during their annual meeting at the U.N. General Assembly, which concluded Monday. This year, though, the discourse seemed even more urgent than usual. Across the words of more than 150 speeches, two things emerged as clear: Many leaders deeply want the world body to work. And many have concluded that it isn't.

The Trump administration released new fuel economy standards Monday that relax regulatory requirements for automakers to control pollution from gasoline-powered cars and light trucks.

Fuel economy requirements set out how far new vehicles need to travel on a gallon of gasoline. The change furthers President Donald Trump's promise to revoke policies that encouraged or created incentives for the production of electric vehicles.

Iran’s supreme leader, Ayatollah Mojtaba Khamenei, has praised his country’s fighters for allegedly preventing "enemy forces" from "roaming freely" in the Strait of Hormuz.

Khamenei said in a message carried by the state broadcaster on Monday that Iran’s enemies now "do not come" closer to the strait than the Arabian Sea, which is part of the Indian Ocean.

South Korea's military on Monday said explosions that injured three of its officers last week inside the heavily fortified Demilitarized Zone separating the Koreas were probably caused by North Korean mines.

The South's Joint Chiefs of Staff announced the preliminary finding after inspecting the site with the U.S.-led United Nations Command.

Police were holding five men on Monday and examining suspected explosives found near a U.S.-operated air force base in England, as counterterror detectives investigated whether the arrests foiled an attempted attack linked to Iran.

The men were detained early Sunday after three vans were spotted near RAF Fairford, a U.K.-owned base that has been used by American bombers during decades of conflicts in the Middle East.

Surging crude prices are dragging on U.S. futures after President Donald Trump rejectedIran's proposal to reopen the Strait of Hormuz.

Iran had offered to reopen the strait and resume talks on its nuclear program if the U.S. lifts its naval blockade of Iranian ports, waives sanctions on Iranian oil sales and observes a ceasefire that would include Lebanon.

Russia's round-the-clock bombardment of targets in Ukraine killed at least seven people and wounded more than 50 others, officials said Monday.

Moscow's forces pounded apartment buildings, offices, data centers and a building of the National Academy of Sciences of Ukraine in downtown Kyiv.

Three officials tell The Associated Press that mediators were still working with Iran and the United States on a deal to end the fighting and open the Strait of Hormuz, with the indirect talks expected to resume on Monday.

The details were revealed as the war enters its eighth month after causing widespread economic suffering. Multiple efforts to allow safe shipping on one of the world's most crucial waterways have failed.

Benjamin Netanyahu traveled secretly to the United Arab Emirates over the weekend to ask its leader to deny reports he'd warned the Israeli prime minister about a looming Hamas threat ahead of the Palestinian militant group's Oct. 7, 2023 attack on southern Israel.

The meeting between Netanyahu and Sheikh Mohamed bin Zayed Al Nahyan took place on Sunday, two people who were briefed on the Israeli leader's trip confirmed on Monday.