Rupert Murdoch has left his central London flat and is believed to be heading to News UK for a meeting with staff, ITV News understands.
The 83-year-old was reading The Sun newspaper as he sat in the front seat of a grey Range Rover.
Murdoch's arrival in the UK follows the acquittal of former News International chief executive Rebekah Brooks on phone hacking charges.
The father of a July 7 bombings victim told ITV News he was taken "back to that time" when he was told his phone may have been hacked.
Sienna Miller has exclusively told ITV News that being a victim of phone hacking damaged her "personally", her relationships and her career.