Officers were called to reports of a burglary on Trewen Road, Caldicot yesterday Wednesday 12th April 2017.
The incident took place at around 3.57pm and the offenders broke in through the back door of the property and jewellery and watches were stolen.
Four men, thought to be in their late teens or early twenties were then seen leaving in a silver Audi A4 registration number YY05 TGU, heading in the direction of the Langstone area.
DS Gareth Martin said, 'We're appealing for anyone with information about this incident to contact us. Officers are investigating and we're particularly keen to speak to anyone who may have information about these four individuals or the Audi which was seen in the area.'
If anyone has any information about this burglary, please call 101 quoting log 356 12/4/17.