Prince Harry is suing two British tabloids for allegedly hacking his phone and stealing his voicemails.

The claims against The Sun and the Daily Mirror were filed in High Court of Justice on Harry’s behalf, and involve the “illegal interception of voicemail messages,” Buckingham Palace confirmed to the Associated Press on Saturday.

The palace wouldn’t provide any more details “given the particulars of the claims are not yet public.”

News of Harry’s claims comes just days after his wife, Meghan Markle, sued the Mail on Sunday and it’s parent company Associated Newspapers for allegedly unlawfully publishing an anguished letter she wrote to her estranged father.

In a scathing statement announcing Meghan’s lawsuit, Harry blasted the “British tabloid press” for waging a “ruthless campaign” to smear his wife that echoed the treatment of his mother, Princess Diana, who died in a 1997 car crash while trying to escape paparazzi.

News Group Newspapers, which owns The Sun, acknowledged Harry’s legal action. Reach, which owns the Daily Mirror, said it was “aware that proceedings have been issued” but hadn’t yet received notice of them.

Former top UK newspaper The News of the World, which was also owned by News Group Newspapers, shut down in 2011 amid a hacking scandal that allegedly also involved Harry and his older brother, Prince William.