Police are warning householders to step up security following two more incidents in Norwich where intruders smashed glass in front doors in order to try to enter homes.

Police are warning householders to step up security following two more incidents in Norwich where intruders smashed glass in front doors in order to try to enter homes.

Officers initially issued a warning last week after four homes were broken into in this way and a failed attempt was made to break into a fifth property.

In each case the offender smashed a pane of glass in the front door and then reached through to release the lock inside.

A further two similar incidents have now been reported.

At about 1pm on Monday , a pane of glass was smashed in the front door of a house in Denton Road close to Shipfields, Norwich. However, the burglars did not manage to gain entry.

Between 8am and 2.45pm on Wednesday a house in Dereham Road was broken into and a quantity of jewellery was stolen including five gold rings, three with diamonds set into them, one a garnet ring and the fifth with a setting of sapphires.

Burglary investigator Det Con Ivan Burrows said: “I'd like to raise awareness of these incidents and encourage people to use another lock on their door if they have one, or consider installing an extra lock like a mortise deadlock. I would also remind people not to leave the key in the lock.”

Anyone with information about the burglary and the attempted burglary in Dereham Road and Denton Road should contact Det Con Burrows at Norwich CID on 0845 4564567 or alternatively contact Crimestoppers anonymously on 0800 555111.