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PHILADELPHIA (CBS) — A man was caught on video allegedly spray-painting remarks on Meek Mill’s grandmother’s house in the Graduate Hospital section of Philadelphia on Monday night.

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The Philly rapper shared video of the incident on Twitter Tuesday.

The video shows a white male spraying graffiti and “referencing white Privileged” symbols or words, according to Mill.

Credit: Meek Mill

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Eyewitness News found other instances of vandalism in the neighborhood with the same graffiti tagged on buildings. It says “Acorn” with no other reference to what that symbolizes in this case.

(credit: CBS3)

Meek Mill’s publicist says the hip-hop artist has filed charges.

The Philly-born rapper has been an outspoken advocate for criminal and social justice reform after being released from prison this summer on a probation violation that stems from a decades-old case in Philadelphia.

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Philadelphia Police are investigating the incident.