US President Barack Obama said there is an "epidemic of gun violence" tearing communities across America apart.
Speaking at a memorial for victims of the US Navy Yard shootings, Obama said: "As President I have now grieved with five American communities ripped apart by mass violence; Fort Hood, Tucson, Aurora, Sandy Hook and now the Washington Navy Yard.
"And these mass shootings occur against a backdrop of daily tragedies as an epidemic of gun violence tears apart communities across America".
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