Masked men in sledge hammer raid

A gang of masked robbers used sledge hammers to smash their way into a building society in Norfolk.

The three raiders then threatened two security guards who were delivering cash to the Holt branch of the Nationwide on Tuesday evening.

They escaped with an "undisclosed" sum of cash, making their getaway in a dark coloured estate car with metal bars running along the roof, police said.

Anyone with information about the robbery should contact Norfolk Police.

The guards were left shaken but unhurt following the robbery, which took place in Shirehall Plain at 1834 GMT.