Colorado's Democratic governor and its Republican top lawyer asked a U.S. court Wednesday to issue an injunction declaring their state's gay marriage ban unconstitutional.

But Gov. John Hickenlooper and Attorney General John Suthers want the court to delay implementation of the ruling until the U.S. Supreme Court decides the issue.

Islamic militants in Iraq have freed 32 Turkish truck drivers held hostage for three weeks in a mass kidnapping that shocked Turkey, the foreign minister said Thursday.

The truck drivers are now on their way back to Turkey through northern Iraq but a separate group of almost 50 kidnapped Turks remain in captivity, Foreign Minister Ahmet Davutoglu told reporters.

The spiraling refugee crisis from Syria's civil war could pose a serious threat to Lebanon's security and destabilize the entire region unless donors quickly provide the unfunded 70 percent of the $3.74 billion needed for emergency needs, U.N. High Commissioner for Refugees António Guterres said Thursday.

The estimate of how much money will be needed is based on an upwardly revised assessment that Guterres plans to formally present on Friday. It includes a new estimate there will be at least 3.6 million Syrian refugees in the region by the end of the year.

Lindsay Lohan is suing the makers of the "Grand Theft Auto" video games. The actress says the latest installment used her image and created a character based on her without her permission.

Lohan's lawsuit was filed Wednesday in a Manhattan court. "Grand Theft Auto V" game maker Take-Two Interactive Software Inc. and subsidiary Rockstar Games declined to comment.

Silicon Valley venture capitalist Tim Draper is betting that bitcoins will bring more financial stability to countries with shaky economies, even though the digital currency faces an uncertain future itself.

The financier revealed Wednesday that he snapped up nearly 30,000 bitcoins in a recent U.S. government auction and plans to trade them on a platform catering to markets looking for alternatives to their own volatile currencies.

The display manufacturing unit of Samsung Electronics Co. says it has secured approval from Vietnam to build a $1 billion factory in the Southeast Asian country.

Samsung Display Co. said Thursday that the plant in northern Vietnam will supply small displays for Samsung smartphones and tablet computers starting sometime next year.

A case of suspected mad cow disease has been found in Romanian beef, officials said Wednesday.

Romania's animal health and safety authority said a preliminary test on May 1 indicated that a cow slaughtered at an authorized abattoir was infected with bovine spongiform encephalopathy, or BSE.

U.S. and Japanese scientists who reported that they'd found a startlingly simple way to make stem cells withdrew that claim Wednesday, admitting to "extensive" errors in the research.

In two papers published in January in the journal Nature, the researchers said that they'd been able to transform ordinary mouse cells into versatile stem cells by exposing them to a mildly acidic environment. Someday, scientists hope to harness stem cells to grow replacement tissue for treating a variety of diseases.

The euphoria in football-mad Colombia is deafening, and wonderfully contagious, ahead of Friday's do-or-die World Cup match against host Brazil.

Never before has the star-crossed nation made the quarterfinals. Some are even waxing poetic about World Cup unity accelerating the pace of 18-month-old peace talks to end a half-century of conflict that has claimed some 220,000 lives.

President Barack Obama commended the U.S. men's football team Wednesday for making their country proud in the World Cup tournament in Brazil, during an Oval Office phone call with two of the team's most celebrated players.

Obama called goalkeeper Tim Howard and team captain Clint Dempsey the day after the U.S. team came tantalizingly close to victory before being knocked out of the competition by Belgium. Praising Howard and Dempsey for their leadership and the team's performance, Obama said this year was the first time the U.S. team had the entire nation truly focused on the contest.