Investigators are searching for two people - a man and a woman - who were seen on surveillance video attempting to break into the Rotary Park in Donelson.
According to the park's Facebook page, it happened on Monday at 5 p.m.
The man and woman entered the property from the treeline by the gravel lot and proceeded to break through a steel window.
Officials said the couple left immediately once the alarm sounded.
Park officials said the location has been targeted by vandals and thieves several times over the past few years.
The cost of Monday's damage has not been determined.
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