Rihanna SWATTED

Rihanna is the latest celeb to get swatted ... and TMZ has learned it's happening right now.

Law enforcement sources tell us ... a call came in to 911 claiming 2 armed men were inside the Pacific Palisades house and someone was shot.

LAPD is on scene and we're told they're confident it's yet another swatting call.

The incident comes just a day after Diddy was swatted in the nearby San Fernando Valley.

As we reported ... the latest swatting victims appear to have been targeted by the celebrity hackers who pilfered financial information from Michelle Obama, Kim Kardashian, Tom Cruise, Britney Spears, Beyonce and others.