FBI raises reward for missing ex-FBI agent Levinson to $5 million.

The FBI has increased its reward for information on missing American Robert Levinson from $1 million to $5 million, it announced Monday.Levinson, a retired FBI agent,

French Olympians among 10 dead after 2 helicopters collide in Argentina.

Two French Olympic medalists were among 10 people killed when two helicopters crashed into each other in Argentina on Monday evening, the country's state news agency Telam reported.

Investigators find no unusual signs among MH370 pilots and cabin crew.

Investigators have found no indications of unusual behavior among the pilots and cabin crew of Malaysia Airlines Flight 370 before it took off and vanished a year ago."There were no behavioral signs of social isolation

Did China's most popular environmental film just vanish into the haze?

When it came to the environment in China, it was hazy through much of the weekend -- literally and figuratively.As a thick layer of toxic air blanketed Beijing and much of northern China on Friday,

Russian authorities arrest 4 in killing of opposition leader Boris Nemtsov.

Russian authorities arrested four men Saturday in connection with the shooting death of a leading opposition figure, Russian state media reported.Boris Nemtsov, one of President Vladimir Putin's most outspoken critics,

Boko Haram purportedly pledges allegiance to ISIS.

Boko Haram, the Nigeria-based Islamist terror group, has pledged allegiance to ISIS, according to an audio message purported to be from Boko Haram's leader, Abubakar Shekau.

Stoned to Death

Amid brazen, deadly attacks, gay Syrians tell of fear of ISIS persecution

MH370: Missing Malaysia Airlines flight 'will be found'

Malaysia's transport minister says he is confident the missing MH370 aircraft will be found in the Indian Ocean.

Islamic State crisis: Iraqi army drives IS from key town

Iraqi forces have pushed Islamic State (IS) fighters out of the western town of al-Baghdadi, the US military says.

Harrison Ford 'battered, but ok' after small-plane crash, son says.

Actor Harrison Ford was "banged up" and hospitalized Thursday afternoon after a 1940s aircraft he was piloting crashed during a forced landing on a golf course, his publicist said."Harrison was flying a WW2 vintage plane today which had engine trouble upon takeoff,"