Prince William and Prince Harry have been keeping in contact with "informal" Zoom video calls.
The brothers are currently living halfway across the world from one another - Prince Harry in Los Angeles and Prince William in Norfolk - but they speak regularly online.
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A source said: "William finds Zoom a good, informal way of keeping in touch, and some would say 'tabs', on his younger brother. There have been several zoom calls. It's easy to set up and involves no awkward scheduling.
"After the children have gone to bed and supper with Kate. It has been only William and Harry. It is around lunchtime in LA. These calls are made from Anmer's private sitting room. It's not the room that Kate and William use for their public zoom sessions."