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.
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.
The deaths of two Western journalists in Syria Wednesday, less than a week after New York Times correspondent Anthony Shadid died in the violence-wracked country, highlights the danger reporters face in covering conflict zones.
Demonstrators burned tires and threw rocks outside a NATO military base in Kabul on Wednesday, as protests continued for a second day after troops burned copies of the Quran.
Two days of talks in Iran went nowhere and the frustration of the global nuclear watchdog agency was palpable in the terse statement it issued afterward.