By Bria Brown

(CBS DETROIT) – An animal advocacy organization is offering a $5,000 dollar reward for a tip in the killings of 17 swans.

People for the ethical treatment of animals say since January dead swans have been found floating near Maceday Lake in Waterford.

READ MORE: Grosse Ile Parkway Bridge Reopens Ahead Of Schedule Following Repairs

An investigation into the deaths found one of the birds possibly died from antifreeze poisoning.

READ MORE: Here's A List Of Weekend Construction In Metro Detroit

Anyone with information is asked to call the police or PETA’s poaching hotline.

MORE NEWS: Detroit Police Seek Assistance Locating Suspect In Connection To Fatal Shooting Of His Wife

© 2021 CBS Broadcasting Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.