Porn star Olivia Nova found dead in Las Vegas aged 20

The adult actress was found dead in Las Vegas on Sunday, according to reports.

The cause of death is not known at this stage and her family have been informed.

The company LA Direct Models, which manages her, said they were "beyond shocked by the sudden death."

In a statement they said: "While only represented by Direct Models for a short period of time, we came to know Olivia as a beautiful girl with a very sweet and gentle personality.

"Another one, way too young, we are beyond shocked and most certainly, it was completely out of the blue.

Rest in peace, sweet angel."

Nova was originally from Minnesota, US and had only begun her career in porn in March last year.

She had performed for numerous adult film production houses including Brazzers, Naughty America, FTV Girls, New Sensations and Digital Sin.

On Christmas day, she tweeted: "Alone on the holidays and want to give a fan a holiday call. Would lift my spirits."

Nova has become the fourth porn star to die in the adult film industry since November.

August Ames, 23,Yuri Luv, 31 and Shyla Stylez, 35, all died recently.

In December, Ames committed suicide after facing a social media backlash for saying she refused to work with actors who had starred in gay porn flicks.