'Avoid large gatherings over the next 48 hours' - US Embassy - Moscow

'Avoid large gatherings over the next 48 hours.'  That is the warning coming from the US Embassy in Moscow, to Americans in Russia.

The US and UK are warning of an imminent terrorist attack in Moscow, urging the public to avoid large gatherings in the city. The warning comes after Moscow police says it also thwarted a planned Islamist attack on a synagogue.