Actress-writer Lena Dunham has condemned a mystery hacker who leaked nude photographs of celebrities, including actress Jennifer Lawrence.

Lawrence hit headlines Sunday when intimate snaps of her were posted on the internet by a hacker who claims to have similar pictures of more than 100 female stars, reports holllywood.com.

Now "Girls" actress Dunham has reached out to her fans and urged them to discourage the leaking of photos by not viewing them.

In a series of posts on Twitter, she wrote: "The way in which you share your body must be a Choice. Support these women and do not look at these pictures.

"Remember, when you look at these pictures you are violating these women again and again. It's not okay... Seriously, do not forget that the person who stole these pictures and leaked them is not a hacker: they're a sex offender."