Philadelphia police are searching for a person accused of setting an American flag on fire.

The flag was hanging outside a home around 4 a.m. Thursday on the city's south side when the arson was caught on camera, FOX 29 Philadelphia reports. 

Police have not provided a possible motive or description of the person responsible.

Authorities are asking anyone with information to contact police immediately. 

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Flag arson Philadelphia, PA

Authorities are searching for someone who they say lit an American flag on fire outside a South Philadelphia home.

Last summer an unidentified arsonist was being sought after being caught on video twice lighting an American flag on fire outside a resident’s home. 

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Philadelphia flag arson

Flag was hanging outside a home on the 200 block of Fulton Street when it was set on fire around 4 a.m. Thursday. (FOX 29 Philadelphia)

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The Supreme Court previously ruled flag burning is protected free speech.

Fox News' Greg Norman and Brie Stimson contributed to this report.