Newquay Town Council is reviewing CCTV footage after a defibrillator was removed from the Killacourt.
In a statement, the council said the lifesaving equipment was taken from its cabinet at the bandstand between 22nd and 28th November and is currently missing.
The council emphasised the importance of the device, stating: "Every second counts when someone is in cardiac arrest, and this equipment can make the difference between life and death."
It is appealing for anyone with information or who noticed anything suspicious to contact them. You can get in touch via email at corporateservice@newquay.gov.uk, by telephone on 01637 878388, or by contacting Duchy Defibrillators on 0800 7723638.