Mitt Romney and Rick Santorum mix it up in the final Republican presidential candidate's debate before next week's primaries in Arizona and Michigan.

Thirty five people are reported killed in Syria, including two Western journalists, as world leaders try to put pressure on Bashar al-Assad's regime to halt the brutal crackdown.

At least 49 people were killed and more than 600 people injured when a train plowed into a platform at a Buenos Aires station, state media reports.

Australian Prime Minister Julia Gillard will put her future in the hands of her Labor Party parliamentary colleagues next Monday, she told reporters Thursday in Adelaide.

A U.S. envoy is meeting with North Korean officials in Beijing on Thursday to discuss Pyongyang's nuclear program, the first such talks since the death of the longtime leader Kim Jong Il.