Menasha's Mayor said the Gilbert Trail along the Fox River is being littered with dead fish.
He posted photos to his Facebook page.
He said someone is leaving fish all up and down the shoreline, in the pavilion and at the bridge.
Mayor Merkes said 24 hours after they cleaned up the first mess, it happened again.
Mayor Merkes said if you see anyone disrespecting the parks you should contact police.
He also said if this continues the city could consider closing the area to fishing.
We've reached out to the Wisconsin DNR for more information on this incident.
