No additional details were given by this spokesperson, but the British media indicate that the complaint targets the Associated Newspapers group, which notably publishes the popular tabloid Daily Mail.
Prince Harry accuses the Mail on Sunday newspaper (the Sunday edition of the Daily Mail) of defaming him in an article claiming he tried to keep his request for police protection secret while staying at the UK.
Harry and his wife Meghan Markle live in North Los Angeles.
They decided to step back from the royal family in 2019, which mechanically deprived them of the right to police protection at the expense of the British taxpayer.
Harry has offered to cover these costs while in the UK and is now challenging the Home Office's refusal in court.
He replied that a police security device "is not available on the basis of private funding".
The princely couple recently filed a complaint against several publications for invasion of the privacy of their family.
Last December, Meghan Markle won her case against a tabloid, condemned for the publication of a letter she had written to her father.
She then celebrated a "victory" against a "cruel" and misleading tabloid press, according to her.
© 2022 AFP