Lives have been put at risk by a thief who stole a defibrillator from Sheffield railway station.
The crook stole the life-saving device, which can re-start hearts, in the early hours of Sunday.
He was spotted taking the defibrillator from its storage box, near the disabled toilet, and placing the device into a white drawstring bag.
Officers from British Transport Police investigating the theft are appealing to the thief to return the equipment.
PC Emma Williamson said: “At around 4am a man entered the area near the disabled toilet where the defibrillator storage box is kept.
“He then placed the life saving equipment into his white drawstring sports bag before walking off down platform 5 of the station.
“This defibrillator was donated to the station by Yorkshire Ambulance Service for the purpose of saving lives.
“We would appeal to the better nature of whoever took it to return it immediately. Without equipment like this available at the station, lives could be put at risk. It is essential that it is returned.”
The offender was 6ft tall and was wearing a light top and dark trousers at the time.
Call the police call on 0800 405040.