Sounds like those crazy Iranians blew themselves up again. Probably with a little help from Israeli spies. 
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Three explosions were heard in western Tehran on Tuesday, in an area where Iran carries out missile research and storage, according to a Tweet by a BBC Persian journalist.
It was not immediately clear if there were injuries or damage in the incident.
In January, both Iran and the International Atomic Energy Agency denied reports that a blast had hit the Fordow underground uranium enrichment center near Qom.
A mysterious and massive explosion rocked a military arms depot near Tehran in November 2011, killing 17 Revolutionary Guards Corps officers and wounding 17 others.
http://www.jpost.com/Middle-East/3-explosions-heard-in-Tehran-near-missile-facility-312369

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Three explosions were heard in western Tehran on Tuesday, in an area where Iran carries out missile research and storage, according to a Tweet by a BBC Persian journalist.
It was not immediately clear if there were injuries or damage in the incident.
In January, both Iran and the International Atomic Energy Agency denied reports that a blast had hit the Fordow underground uranium enrichment center near Qom.
A mysterious and massive explosion rocked a military arms depot near Tehran in November 2011, killing 17 Revolutionary Guards Corps officers and wounding 17 others.
http://www.jpost.com/Middle-East/3-explosions-heard-in-Tehran-near-missile-facility-312369