A car bomb on Sunday struck the Turkish city of Gaziantep, a major refugee hub near the Syrian border, killing at least two policemen and wounding 22 other people as the country reels from a succession of militant attacks. On a day of violence dubbed "Black Sunday" by the press, three Turkish soldiers died in a separate attack in the province of Mardin to the east, in an ambush by Kurdish militants who have killed hundreds of security forces in a renewed insurgency since last year. With Turkey on high alert for May Day celebrations, four suspected jihadists were detained in Ankara on suspicion of planning attacks and other May 1 events were cancelled elsewhere over security fears.
By Steve Holland and Valerie Volcovici WASHINGTON (Reuters) - Front-runner Donald Trump said on Sunday that he will have essentially sealed the Republican U.S. presidential nomination if he wins Tuesday's contest in Indiana, where he now holds a big lead over chief rival Ted Cruz. A new NBC/Wall Street Journal/Marist opinion poll showed Trump with a wide lead in Indiana, 49 percent to 34 percent for Cruz and 13 percent for a third candidate, Ohio Governor John Kasich. Trump, a 69-year-old real estate developer, sounded confident in an interview on "Fox News Sunday" when asked whether Indiana would basically end the long-running Republican race in his favor.
WASHINGTON (Reuters) - U.S. President Barack Obama's eldest daughter Malia will attend Harvard University in the fall of 2017 after taking a year off from studies following her high school graduation this spring, the White House said. "Malia will take a gap year before beginning school," a White House statement said, breaking a months-long silence about Malia's college search. Both President Obama and Michelle Obama attended Harvard Law School. (Reporting By David Lawder; Editing by Angus MacSwan)