by Gráinne Connolly
Two pieces of lifesaving equipment have been thrown into the water on the Riverside Walk in Omagh.
It's to have happened on the section between Hunters Crescent and Strathroy this week.
Police say this has been happening frequently over a number of years.
They've also taken to social media to warn those involved, "it is not funny, it is not a prank" and this could potentially cost someone their life.
Meanwhile, in the comments section of the post, some members of the public have suggested installing cameras to prevent this sort of behaviour and protect people.
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