Youth who smashed a fire alarm, prompting firefighters to rush to the scene, have been warned they're putting lives at risk.

Firefighters from Swanage were called to Rempstone Road shortly before 6.20pm last night.

The fire alarm had been smashed and youths were seen runnings away.

A spokesman for the fire service said: "This kind of behaviour is unacceptable. It's putting lives at risk."