Missing keys spurs UK jail into changing all its locks

A UK prison is being forced to change all of its locks after one set of keys went missing.

Terry Fullerton of the Prison Officers Association estimates it will take around three weeks to change all of the locks, including those on the cells.

He said: "Nobody knows how the keys have gone missing. They were there at one particular key check, then they were gone."

An investigation is underway following the disappearance of the keys, which could have been stolen and copied.