A community defibrillator has been stolen from the outside of the cricket pavilion in Clair Park, Haywards Heath.
The life-saving machine was bought with funds raised by the annual Haywards Heath Bike Ride and was installed for use by anyone in an emergency.
A spokesman for the Haywards Heath and District Business Association, which organises the bike ride, said: “We just can’t believe that someone would have taken one of our defibrillators.
“A lot of hard work and generous sponsorship from so many meant we were able to buy 15 of these machines so that lives could be saved around our local area.
“Whoever stole this defibrillator should stop and think that it might be their grandpa or grandma (or aunt or uncle) who might be in need of this one day.
“We’re hoping that just maybe they will return it to the Town Hall; if they leave it by the door, we can still put it to good use.”
Anyone who knows of the machine’s whereabout can call Sussex Police on 101 quoting the crime number 0968 of 4/12/13.