LAHORE, Pakistan — Shock and grief enveloped Pakistan on Monday as the official death toll from a suicide attack in Lahore a day earlier rose to 69, with 341 people wounded.

The local news media put the number of people killed at 71.

Police investigators said a suicide bomber had detonated explosives in a vest during the evening rush hour on Sunday at Gulshan-e-Iqbal Park, one of the largest public parks in this eastern city.

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PHILADELPHIA — In the waning moments of North Carolina’s demolition of Indiana in the Sweet 16 on Friday night, a chant began softly echoing throughout the Wells Fargo Center.

Now, this is not football country, where it’s another combination of three letters that gets all the attention and respect. This is the NCAA tournament, where basketball is king and bragging rights are at stake. After a regular season spent lauding the Big 12 for its strength and depth — many considered it among the strongest leagues in recent memory — it’s been the Atlantic Coast Conference stealing all the headlines throughout the NCAA tournament.

Four ACC teams reached the Elite Eight, and they all are on the same half of the bracket, guaranteeing two ACC teams in the Final Four and an ACC representative in the national championship game.

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HAVANA — Five decades after his music was banned in this Communist country, Mick Jagger stood — and sang, jumped and performed his signature dance moves — before hundreds of thousands of adoring fans Friday night in Cuba and declared: “Times are changing.”

“We know that years back it was hard to hear our music in Cuba,” Mr. Jagger said in Spanish, alluding to the years that American and British rock music were forbidden here. “Here we are.” It was a bit of an understatement at the start of a free two-hour outdoor Rolling Stones concert at the Ciudad Deportiva sports facility that capped a whirlwind week of “firsts.” Days after a visit by President Obama and a Tampa Bay Rays exhibition game, the show took on outsize symbolism that was hard to exaggerate.

In a nation where people long stifled by a repressive government feel as if they are on the cusp of a broad transformation, Cuban music fans hoped Mr. Jagger would break down the gates to political and social change that Cuban leaders had already cracked open. “Big things start with something small,” said Andres Martinez of San Francisco, who attended with his girlfriend, who lives in Cuba. “Five years from now, they’re going to be saying: ‘It started with the Rolling Stones.’ ”

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Senator Bernie Sanders handily defeated Hillary Clinton on Saturday in the Washington State and Alaska caucuses, infusing his underdog campaign with critical momentum and bolstering his argument that the race for the Democratic nomination is not a foregone conclusion.

Mr. Sanders found a welcome tableau in the largely white and liberal electorates of the Pacific Northwest, where just days after routing Mrs. Clinton in Idaho he won another resounding victory in Washington. The Associated Press declared him the winner after early results showed him beating Mrs. Clinton by more than 50 percentage points. In Alaska, he had a nearly 60-point lead.

Washington, with 101 delegates in play, was a vital state for Mr. Sanders, whose prospects of capturing the nomination dimmed after double-digit losses to Mrs. Clinton across the South and weak showings in delegate-rich Ohio, Florida and North Carolina this month.

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