ISLAMABAD (Reuters) - Cricket hero Imran Khan's Pakistan Tehrik-i-Insaf party won a revote in an upmarket constituency of Karachi on Sunday, unofficial results showed, a day after gunmen killed a party leader, setting the stage for protests and counter-protests. Khan blamed the killing of Zara Shahid Hussain on the Muttahida Quami Movement (MQM) party, which has a stranglehold on the city. Furious MQM leaders denied responsibility, condemned the killing and demanded a retraction from Khan. ...

CARACAS (Reuters) - Venezuela's recent designation of an acting head of its diplomatic mission in the United States shows the OPEC nation's desire to restore full diplomatic relations, the foreign minister said in an interview broadcast on Sunday. Disputes between Caracas and Washington were common during the 14-year-rule of late socialist leader Hugo Chavez, leaving both nations without ambassadors in each other's capitals. ...

By Khaled Yacoub Oweis AMMAN (Reuters) - Lebanese Hezbollah militants attacked a Syrian rebel-held town alongside Syrian troops on Sunday and Israel threatened more attacks on Syria to rein the militia in, highlighting the risks of a wider regional conflict if planned peace talks fail. Activists said it was the fiercest fighting in Syria's two year-old civil war involving Hezbollah, a Shi'ite group backed by Iran which they said appeared to be helping President Bashar al-Assad secure a vital corridor in case Syria fragments. ...

SAN FRANCISCO (Reuters) - Yahoo Inc's board has approved a deal to buy blogging and social networking site Tumblr for $1.1 billion in cash, the Wall Street Journal cited people familiar with the matter as saying on Sunday. Such an acquisition would be Marissa Mayer's largest deal since taking the helm of the once-iconic Internet company in July 2012. Yahoo is keen on fast-growing Tumblr because its younger user base would bolster the older website's "cool factor," the technology blog AllThingsD cited the sources as saying. ...

By Ernest Scheyder WATFORD CITY, North Dakota (Reuters) - In towns across North Dakota, the wellhead of the North American energy boom, the locals have taken to quoting the adage: "Whiskey is for drinking, and water is for fighting." It's not that they lack water, like Texas and California. They are swimming in it, and it is free for the taking. Yet as the state's Bakken shale fields have grown, so has the fight over who has the right to tap into the multimillion-dollar market to supply water to the energy sector. North Dakota now accounts for over 10 percent of U.S. ...

By Masayuki Kitano SINGAPORE (Reuters) - The yen edged higher on Monday after Japan's economics minister said further weakness in the yen could harm households, while Asian shares rose in response to U.S. equities rallying on upbeat economic data. The dollar fell to as low as 102.00 yen earlier on Monday, pulling away from Friday's high of 103.32 yen, the greenback's highest level versus the yen since October 2008. The dollar later pared some of its losses, and last stood at 102.69 yen, down 0.5 percent on the day. ...

Another day, another domination for Taylor Swift: She was the red hot winner at the Billboard Music Awards.

LOS ANGELES (AP) — "Star Trek: Into Darkness" has warped its way to a $70.6 million domestic launch from Friday to Sunday, though it's not setting any light-speed records with a debut that's lower than the studio's expectations.

CANNES, France (AP) — Associated Press journalists open their notebooks at the 2013 Cannes Film Festival:

OTTAWA (AP) — Colin Greening scored 7:39 into double overtime, and the Ottawa Senators rallied for a 2-1 victory over the Pittsburgh Penguins that cut their series deficit to 2-1 on Sunday night.

SAN ANTONIO (AP) — The San Antonio Spurs opened the Western Conference finals resembling the past champions who've been there so many times before.

BOSTON (AP) — Claude Julien wanted his Bruins to play more aggressively in the third period. The Boston coach got his wish with the help of some shaky defense by the New York Rangers.

Republican Senators Rand Paul, Mitch McConnell and Rob Portman continued Sunday to press the Obama administration on the Internal Revenue Service scandal that's engulfed the White House. On CNN's "State of the Union," Paul told Candy Crowley he heard about a "written policy" that encouraged IRS officials to target "those who are critical of the [...]

President Barack Obama took a break from the trifecta of controversies—IRS, Department of Justice, Benghazi—swirling around the White House on Sunday to deliver the commencement address at Morehouse College, the historically black, all-male institution in Atlanta. "What I ask of you today is the same thing I ask of every graduating class I address," Obama [...]

While applying with the Internal Revenue Service for tax-exempt status in 2009, an Iowa-based anti-abortion group was asked to provide information about its members' prayer meetings, documents sent by an IRS official to the organization reveal. On June 22, 2009, the Coalition for Life of Iowa received a letter from the IRS office in Cincinnati, [...]