A pond along North Drive in Great Yarmouth was contaminated (Image: Julie Young/Newsquest)
A pond in Great Yarmouth was contaminated with an unknown substance which caused it to foam.
The incident is thought to have taken place during the weekend, sometime between Saturday, March 18, and early Monday, March 20, along North Drive.
Enquiries continue and police would like to hear from anyone who may have seen suspicious activity in the area at the time.
People should contact PC George Smith at Great Yarmouth police station quoting crime reference number 36/20219/23.
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