X Factor bosses also step up security to protect finalist Katie Waissel

X Factor producers have contacted the police over online death threats aimed at finalist Katie Waissel.

Vile messages have been posted about the blonde singer, 24, on Facebook and Twitter.

‘These threats are disgusting and outrageous,’ an X Factor spokesperson tells the Daily Mail.

This is cyber bullying and we will not put up with it. We are doing what we can to stop it and are contacting police.’

Katie was reportedly interviewed by officers earlier this week over her concerns. 

Bosses have also been stepped up security to protect her and the fellow contestants.

Last week, Katie revealed that someone threw a banana skin at her.

PHOTO GALLERY The X Factor finalists – then and now>>

SEE PICTURES The X Factor 2010 – the finalists’ stylish makeovers>>

SEE PICTURES The X Factor 2010 – the live shows>>

SEE PICTURES The X Factor 2010 – finalists prepare for live shows>>

SEE PICTURES The X Factor 2010 – final 12 get makeovers>>

SEE PICTURES The X Factor 2010 – final 12>>

SEE PICTURES The X Factor 2010 – auditions>>

SEE PICTURES The X Factor 2009 – best moments>>