Police are investigating after an American flag at the square in Marietta, Lancaster County was lowered and then set on fire.
According to officials, the incident happened in the overnight hours of March 8 to March 9.
The State flag, which was also being flown in the square, was not damaged.
Police estimate the loss is $50.
Anyone with information may contact Susquehanna Regional Police at 717-426-1158 or Lancaster City/County Crime Stoppers.