CANNON BALL, North Dakota — The U.S. Army Corps of Engineers said Sunday that it won’t grant an easement for the Dakota Access oil pipeline in southern North Dakota, handing a victory to the Standing Rock Sioux tribe and its supporters, who argued the project would threaten the tribe’s water source and cultural sites.

ROME — Italian voters dealt Premier Matteo Renzi a stinging defeat on his reforms referendum, triggering his resignation announcement and galvanizing the populist, opposition 5-Star Movement’s determination to gain national power soon.

“I lost, and the post that gets eliminated is mine,” Renzi said early Monday about an hour after the polls closed. “The government’s experience is over, and in the afternoon I’ll go to the Quirinal Hill to hand in my resignation” to President Sergio Mattarella.

Besides the “anti-establishment” 5-Stars, the outcome energized another “anti” party, the anti-immigrant Northern League, an ally of French far-right leader Marine Le Pen, a candidate in France’s presidential race.

In voting No, Italians also delivered a rebuke to Italy’s industrialists, banks and other establishment institutions, which had staunchly backed the referendum. The anti-reform victory, which could spook investors, comes just as the government had made some inroads in cutting the staggering rate of youth employment and while Italy’s banks have urgent need for recapitalization.

During the campaign, the risk of political instability in Italy, Europe’s fourth-largest economy, triggered market reaction, with bank stocks sinking and borrowing costs on sovereign debt rising.

But some analysts predicted the political crisis sparked by Renzi’s exit would be short-lived, as politicians focus on lining up support for a new electoral law they view as boosting their parties’ chances for whenever elections are called.

Wolfango Piccoli, a London-based analyst and co-president at Teneo Intelligence, said the main risk of Renzi’s “devastating defeat” will lie in the medium term.

That could see “a prolonged muddle-through period, the emergence of an ineffective patched-up coalition government in the post-election phase and continuously poor economic performance,” Piccoli said in an emailed comment.

The 5-Star Movement, led by anti-euro comic Beppe Grillo, spearheaded the No camp on the constitutional reforms, a package aimed at updating Italy’s post-war Constitution that Renzi had depicted as vital to modernizing Italy and reviving its economy.

Characteristically confident — detractors say arrogant — Renzi, 41, and Italy’s youngest premier, had bet his political future — or at least his current premiership — on a Yes vote win, and campaigned hard for a victory in recent weeks to confound opinion polls indicating that it would likely go down to defeat.

With votes counted from nearly all the polling stations in Sunday’s referendum, the No’s were leading Yes votes by a 6-to-4 margin, Interior Ministry data indicated. The turnout of 67 percent was especially high for a referendum, and more in line for a vote for Parliament.

Renzi had been hoping to beat off the rising populist forces that have gained traction across Europe, as well as with the U.S. presidential victory last month by billionaire political outsider Donald Trump.

Earlier on Sunday, in Austria’s presidential runoff, left-leaning candidate Alexander Van der Bellen prevailed over a right-wing populist.

Leaders of the populist 5-Star Movement, which is led by Grillo, joined the chorus among opposition forces for early elections. The 5-Stars are the chief rivals of Renzi’s Democrats and are anxious to achieve national power for the first time.

“Today the caste in power lost,” said a 5-Star leader, Luigi Di Maio. It was a sharp retort to Renzi’s characterizing the reforms as an opportunity to shrink the “caste” of elite, perk-enjoying politicians by reducing the numbers and powers of Senators.

“Arrogance lost, from which we’ll learn many things in forming our team for government and our platform,” Di Maio said. “Starting tomorrow we’ll be working on a government of the 5-Stars, we’ll involve the energies and the free persons who want to participate.”

The 5-Stars’ constituency is largely internet based, and bills itself as anti-establishment.

“The man alone at the command doesn’t exist anymore, but the citizens who govern the institutions” do, Di Maio told a news conference minutes after Renzi conceded.

In Bologna, traditionally a left-leaning city, about 100 people rallied after the defeat to burn several Yes-vote flags and carried a banner saying “Renzi go home.”

Mattarella, as head of state, would have to decide whether to accept Renzi’s resignation.

Renzi is widely expected to be asked to stay on at least until a budget bill can be passed later this month. Then he or some other figure, perhaps from his Democrats, Parliament’s largest party, could be asked to lead a government focused electoral reform.

The current electoral law would grant the biggest vote-getting a generous bonus of seats in Parliament.

Renzi’s Democrats and the center-right opposition of former Premier Silvio Berlusconi want the law changed to avoid risking that the bonus would go to the 5-Stars should they lead the vote-getting.

Elections are due in spring 2018, but Renzi’s resignation could prompt their being moved up a year.

Another opposition leader, Matteo Salvini, of the anti-immigrant Northern League, hailed the referendum as a “victory of the people against the strong powers of three-quarters of the world.” He urged elections straightaway.

Many had read the referendum as an outlet for growing anti-establishment, populist sentiment in Europe.

When Renzi late last year promised to resign if the referendum was defeated, it was months before Britain’s David Cameron had made his ill-fated bet that a referendum would cement the U.K.’s membership in the European Union. Cameron was forced to resign when Britons instead voted to leave the EU fold.

In Italy, the referendum was required because the reforms were approved by less than two-thirds of Parliament. The reforms included steam-lining the Senate and giving the central government more powers at the cost of the regions.

“We didn’t exit from Europe, but we didn’t ‘exit,’ from the Constitution either,” said former Premier Massimo D’Alema.

A former Communist, D’Alema opposed fellow Democrat Renzi on the referendum issue, aggravating tensions within their bickering party.

Story: Frances D’Emilio

SANTIAGO, Cuba — President Raul Castro announced that Cuba will prohibit the naming of streets and monuments after his brother Fidel, and bar the construction of statues of the former leader and revolutionary icon in keeping with his desire to avoid a cult of personality.

The announcement late Saturday came after a week of national mourning for Fidel Castro that reached near-religious peaks of adulation and a half-day before his ashes are interred in Santiago’s Santa Ifigenia cemetery, ending the official mourning period.

“The leader of the revolution rejected any manifestation of a cult of personality and was consistent in that through the last hours of his life, insisting that, once dead, his name and likeness would never be used on institutions, streets, parks or other public sites, and that busts, statutes or other forms of tribute would never be erected,” Raul Castro told a massive crowd gathered in the eastern city of Santiago.

He said that Cuba’s National Assembly would vote in its next session on the law fulfilling the wishes of his brother, who died last week at 90. The legislature generally holds a meeting in December and under Cuba’s single-party system, parliament unanimously or near-unanimously approves every government proposal.

Fidel Castro, who stepped down in 2006 after falling ill, kept his name off public sites during his near half-century in power because he said he wanted to avoid the development of a personality cult. In contrast, the images of his fellow revolutionary fighters Camilo Cienfuegos and Ernesto “Che” Guevara became common across Cuba in the decades since their deaths.

Mourning for Castro has been fervent and intense across the country since his death, particularly in rural eastern Cuba, where huge crowds have been shouting Castro’s name and lining the roads to salute the funeral procession carrying his ashes.

“All of us would like to put Fidel’s name on everything but in the end, Fidel is all of Cuba,” said Juan Antonio Gonzalez, a 70-year-old retired economist. “It was a decision of Fidel’s, not Raul’s, and I think he has to be respected.”

Raul Castro, 85, spoke at the end of a second massive rally in honor of Fidel as Cuba neared the end of a nine-day period of public mourning. Castro’s ashes arrived Saturday afternoon in Santiago, ending a four-day journey across Cuba that began after a massive rally in Havana’s Plaza of the Revolution.

Thousands of people welcomed the leader’s remains to shouts of “Fidel! I am Fidel!” Hundreds of thousands more gathered in Santiago’s Revolution Plaza Saturday night, cheering speeches by the heads of state-run groups of small farmers, women, revolutionary veterans and neighborhood watch committee members.

The event was attended by Bolivian President Evo Morales, Nicaraguan leader Daniel Ortega and Nicolas Maduro of Venezuela, along with former Brazilian presidents Dilma Rousseff and Lula da Silva.

Castro’s ashes will be interred Sunday morning in Santiago’s Santa Ifigenia cemetery, ending the official mourning period.

Story: Andrea Rodriguez, Michael Weissenstein