Police are appealing for information after an armed robbery in Chester-le-Street.
Detective Chief Inspector Victoria Fuller, from Durham Police, said:
"I would like to appeal for anyone who was in the area mentioned between 1pm and 3pm yesterday and saw or heard anything suspicious to come forward. We are particularly interested in hearing from anyone who was in the vicinity of Morningside Court at around 2:30 yesterday afternoon.
"This was clearly a very distressing experience for the security guards involved and a five figure sum of money has been taken. With this in mind I would urge people to think carefully about anything suspicious they may have seen.
"I would like to reassure people that an investigation team are working hard and pursuing a number of lines of enquiry to apprehend those responsible. Anyone with any information should contact police immediately."
Anyone with information can contact Durham Police on 101.
More top news
Paul Brand and guests - including two new North East MPs - discuss the Queen's Speech and the Labour/Lib Dem leadership campaigns.
A look ahead at the forecast for the Tyne Tees region.
Health services that dealt with a double murderer should have identified the probability that he would re-offend