Scarlett Johansson and Mila Kunis' cell phones have reportedly been hacked.
Nude photographs which purport to be Hollywood actress Johansson were leaked onto the internet this morning.
The 26-year-old star is said to have contacted the Federal Bureau of Investigation because she believes a criminal act has taken place, TMZ reports.
The pictures of Johansson appear to be self portraits and include the actress draped in a towel but with her backside exposed which is reflected in a mirror.
Another image seems to show a topless picture of the Golden Globe winning actress that she appears to have taken herself.
Meanwhile, Kunis' phone has also reportedly been hacked, with private pictures of her and Friends With Benefits co-star Justin Timberlake leaked.
Four images have so far been leaked, including Timberlake laying shirtless on a bed and another one of the singer jokingly wearing a pair of pink underwear on his head, TMZ reports.
Another image shows Kunis in a bathtub but only her head is visible.
An explicit picture of a man is also included in the set but it is unknown who the person is.
The hackers have also released text messages that they claim are between the Sexy Back singer and the Black Swan star.
Timberlake and Kunis reportedly had a romance while filming and promoting Friends With Benefits but neither ever confirmed they were dating.
The latest photos follow long list of celebrities that have allegedly had their privacy invaded. Miley Cyrus, Jessica Alba and Vanessa Hudgens have all apparently had their phones hacked in recent months.
"The FBI confirms we are investigating computer intrusions of high profile figures," FBI spokesperson Laura Eimiller told RadarOnline.
"Because of the on-going nature of the investigations we are not permitted to specify the names of victims or number of victims."
Three months ago naked photos that the hackers alleged to be Blake Lively surfaced.
The Gossip Girl star denied the pictures were of her and threatened to sue any web site that published the images.
- Cover Media