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Actress Lena Dunham arrives at Variety and Women in Film's pre-Emmy celebration at Gracias Madre in West Hollywood, California. Image Credit: Evan Agostini/Invision/AP

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

Lawrence hit headlines on 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.

Girls star Dunham reached out to her fans and urged them to discourage leaking 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.”