It happened on Saturday in Macungie, Pennsylvania, according to investigators.
Surveillance video shows two men and a woman walking down Lea Street with several flags in their hands.
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The video also shows the group laughing while racing to grab another home's American flag, according to Storyful.
Police are now asking for the public's help in identifying the suspects.
Any information on this case can be forwarded to Officer Miklich at mmiklich@macungiepd.org, according to the Macungie Police Department's Facebook page.