FORDOW FUEL ENRICHMENT PLANT (FFEP)
According to satellite images, Iran has begun construction on a site at its underground nuclear facility at Fordow amid tensions with the U.S. over its atomic programme.
Fordow Fuel Enrichment Plant (FFEP) is an Iranian underground uranium enrichment facility located 20 miles northeast of the Iranian city of Qom, near Fordow village.
It is the second Iranian uranium enrichment facility, the other one being that of Natanz.
Iran has not publicly acknowledged any new construction at Fordow, whose discovery by the West in 2009 came in an earlier round of brinkmanship before world powers struck the 2015 nuclear deal with Tehran.
While the purpose of the building remains unclear, any work at Fordow will likely trigger new concern in the waning days of the Trump administration before the inauguration of U.S. President-elect Joe Biden.