Britney Spears is "on the edge" after discovering sex tapes were stolen from
her Beverly Hills home.

The troubled singer - who is currently undergoing psychiatric treatment at
Los Angeles' UCLA Medical Center - is said to be terrified that "valuable
items" taken from her sprawling mansion on Friday night included
X-rated footage of her taking drugs and having sex.

A source close to the singer said: "This is the last thing Britney needs.
She's on the edge because all her secrets could now be revealed. Some of the
things that may have been taken are dynamite."

This would not be the first time Britney has been involved in a sex tape
scandal.

Footage apparently showing the singer performing oral sex on ex-husband
Kevin Federline was leaked on the internet last year, but was eventually
classed as fake.

More recently, there were reports of Britney, 26, starring in another sex
tape where she sported a shaven head and performed a sex act on two women
and a man while consuming cocaine and marijuana. However, the footage was
never made public.

Los Angeles Police Department officer Alex Martinez confirmed police had
responded to a call originating from Britney's house, but said he had no
idea what had happened, adding: "The report is being processed through our
system. We do not have access to it."

Meanwhile, Britney - who was involuntarily committed to the Stewart and
Lynda Resnick Neuropsychiatric Hospital at UCLA last week after being
classed as G.D. (gravely disabled) - will now spend an additional 14 days in
the ward, after her psychiatrist deemed she wasn't well enough to leave.

Britney - who is now legally under the care of her father Jamie Spears
following a court hearing on Friday - has already been transferred to a
'quiet room' after arguing with doctors following her committal.

A hospital insider told People magazine: "It is a terrible situation.

Britney is in a padded room. Her family is so worried about her."