15/09/2011 05:28 BST | Updated 14/11/2011 05:12 GMT

Scarlett Johansson 'Nude Photos Hacked, FBI Investigating', Mila Kunis, Justin Timberlake Also Targeted

Scarlett Johansson has reportedly called in the FBI after some revealing photographs were allegedly hacked from her personal mobile phone.

TMZ.com reports that representatives for the 26-year-old actress contacted the Agency after several images appeared on a number of websites in America, although Johansson has yet to comment on this, or confirm that the snaps are genuine. One of the shots depicts a tattoo previously sported by the actress.

Meanwhile, gossip about Friends With Benefits co-stars Mila Kunis and Justin Timberlake has gone into overdrive after images from Kunis' phone also reportedly went astray. These photos are reported to show the pair in a series of cosy shots, including the Sexyback singer wearing a pair of pink undies on his head.

The FBI is refusing to name any people associated with its investigation but, if true, Johansson and Kunis are only the latest in a series of Hollywood stars targeted this year by a group of hackers. Jessica Alba, Christina Aguilera, Miley Cyrus and Vanessa Hudgens have all been named in connection with the investigation.