PRINCE Harry’s explosive phone hacking cases are likely to allege The Sun and The Mirror tabloids intercepted the voicemails of his mother Princess Diana, Byline Investigates can reveal.

His claim - if as expected follows the format of other hacking cases to pass through the High Court - will stretch back to include allegations of reporters and private investigators listening to messages about the Prince left on his mother’s phone when he was a child.

Voicemails from, or about, the now 35-year-old Duke of Sussex were also likely to have been left on the phones of Princess Diana’s confidantes and staff, which being targeted by Mirror and News of The World journalists.