Boston Marathon Bombing

Russia Detains 140 Muslims at a Mosque

Suspected of being extremists

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Russian police and security agents detained 140 people at a mosque in Moscow on Friday on suspicion of involvement with Islamic extremism.

A statement from the Federal Security Agency reported by Russian news agencies said among those detained were 30 citizens of unspecified foreign countries.

The detentions come a week after the two suspects in the fatal Boston Marathon bombings were identified as Russian-born ethnic Chechens who sympathized with Islamic extremists.