Cleveland Police issue statement over mystery loud siren heard over large parts of Hartlepool
Mystery surrounds the cause of a loud noise that was heard over parts of Hartlepool in the middle of the night.
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Cleveland Police have said they are investigating the siren like sound but said there is no cause for concern.
The force posted on Facebook early on Saturday, April 27: “We are aware a loud siren has been heard across Hartlepool and the surrounding areas.
"We are investigating but at this time we believe there is no cause for concern.”
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