Officers have released CCTV footage of a man they are hoping to question in connection with the break-in at Cowell's mansion in the exclusive Holland Park neighbourhood on 4 December (15).

The thief stole cash and jewellery from the house while The X Factor creator was asleep upstairs along with his partner Lauren Silverman and their 21-month-old son, Eric.

One man has been arrested and released on bail in connection with the incident, and cops are now appealing for fresh information.

Detective Chief Inspector Will Young says, "This is an ongoing investigation involving a number of lines of inquiry and we are actively following all leads in an effort to identify the suspect concerned.

"A man has already been arrested in connection with this incident and is currently on police bail. The occupants were unharmed during the incident but understandably are shaken by what happened and are keen to recover all of the items that were stolen which are of sentimental value."

Anyone with information is urged to contact the local police force in Kensington and Chelsea.