The World Health Organization is likely to announce more cases of polio in war-ravaged Syria this week, a spokeswoman said on Monday, after the incurable virus was confirmed this month in 13 children who became paralyzed. "(The outbreak) is expected to spread within the country, which...

World powers and Iran have signed a deal on Iran's nuclear programme following intense talks in Geneva. Both sides committed to a series of steps which will last for six months, while a more conclusive deal is negotiated. Here are the key...

Miscalculations by the Syrian regime, opposition groups and U.S. government left them all unprepared for the Aug. 21 gas attack As Syrian troops battled rebel forces in the Damascus suburbs Aug. 18, U.S. eavesdropping equipment began picking up ominous signals. A special Syrian...