Ukraine opposition urges more protests, forms political bloc

Kurds clash with police on Syrian border

Six injured, others missing as cargo train derails in Kenya

Police fire teargas, water cannons at Istanbul protesters

Husband of jailed Pussy Riot member says her release could happen this week

Pope prays for homeless in last pre-Christmas Angelus

Suicide bombing targets military checkpoint in Benghazi

Khodorkovsky holds first news conference since his abrupt release

Railway workers, police scuffle in Seoul

Thousands gather to demand Thai PM resigns

Finalists chosen in robotic competition

Georgians mark Soviet dictator Josef Stalin's birthday

U.S. marks 25th anniversary of Lockerbie bombing

Khodorkovsky has emotional reunion with parents

Tis the season to feed the animals, in Chile

Pope Francis visits sick children

Khodorkovsky's final dramatic hours in Russia

World's top robots battle it out in international competition

Pope: "Gossip is harmful to people"

Heading into harm's way in South Sudan