Whitney Houston's jewel-filled coffin under 24-hour guard from grave robbers

The singer, who died on February 11, aged 48, was buried in a gold-lined casket wearing diamond earrings and a brooch. The coffin and jewellery is worth an estimated $500,000, making Whitney's grave a potential target for thieves.

"There is a very genuine fear that her coffin will be targeted by grave robbers," a source told the Daily Star.

"It would be hard for them to actually dig her casket up, but that won't stop psychotic fans or people who think it could make them money.

"The fact she was buried with such valuable jewellery is just an invitation to sickos.

"It's ironic that Whitney, who was most famous for The Bodyguard movie when she was alive, has to have bodyguards even in death."