Bugging device found on Cowell's car

Simon Cowell is reportedly considering increasing security after a sophisticated bug was found on the undercarriage of his car.

The music mogul was said to be "completely freaked out" after the device was discovered, reports The Mirror.

Cowell asked his security team to search the Bentley Continental after noticing that a leather-clad biker frequently turned up wherever he was.

A source said: "He can't believe someone has gone to so much trouble and expense to monitor his every movement. It's extremely sinister.

"Simon has his suspicions as to who is responsible. He is so angry he is considering calling in the police to investigate further. It is a hassle he could do without - especially with The X Factor in its final stages - but it has to be done. He can't take any chances."

Earlier this year, auditions for Britain's Got Talent had to be halted when a similar device was found in the green room of the Palace Theatre in Manchester.

Amanda Holden, who shared judging duties with Cowell and Piers Morgan, described the discovery as "very Mission Impossible".