Scottish Water, Police Scotland and the Scottish Fire and Rescue Service are warning vandals who set off fire hydrants that they can endanger lives and property and cause substantial disruption to water services.
The three organisations are calling on people not to set off fire hydrants and to consider the effect their actions might have and urging anyone who witnesses such incidents to report them to the police immediately.
Fire hydrants are a connection point to water mains and allow access to the water network, primarily for fire fighting purposes.
The frequency of fire hydrant vandalism incidents can increase during warm, dry weather and in previous years there have been a number of incidents, particularly in parts of the Glasgow area.
Fire hydrant vandalism can result in thousands of properties suffering disruption to their water supply or reduced water pressure.
Reduced water pressure can hamper the ability of firefighters to tackle fires and the vandalism can also cause localised flooding in streets.