US embassy warns of imminent attack in Moscow by 'extremists'
The embassy, which has repeatedly urged all US citizens to leave Russia immediately, gave no further details about the nature of the threat.
A rabbi walks in the courtyard of a synagogue in the ancient city of Debent on the Caspian Sea coast in Russia's Caucasus region of Dagestan August 17, 2007(photo credit: REUTERS/THOMAS PETER/FILE PHOTO)ByREUTERSUpdated: