Images showing a unclothed Jlaw have been leaked included in a selection of photos in the second such release of hacked personal videos of stars by TMZ and other websites such as Huffington Post.
The list of celebs involved in the leak also includes soccer player Hope solo and Kim Kardashian. New photos of Hayden Panetierre have also been released in this latest update.
It is not possible to determine when the pictures were taken but investigations into the leak are currently being made by the police.
Earlier this month over 100 famous women were targetted by a group of hackers who stole over a hundred of naked pictures and personal videos from their personal accounts and released on the web.
The original collection of images also included stars Kate Bosworth, Kirsten Dunst and Victoria Justice.
Reps for Jennifer Lawrence made an announcement on her official website saying they were investigating.