- Kate Middleton and Princess Charlotte were filmed travelling on the London Underground .
- The footage showed the royal pair travelling on the Elizabeth Line on Saturday 10 October.
- They were spotted travelling from Slough station to Tottenham Court Road .
- They were accompanied by three security officers, consisting of two men and one woman.
- Passenger Aislinn Condra, who captured the footage, stated that the pair spoke to members of the public seated opposite them during the journey.
IN FULL
Princess of Wales and Princess Charlotte spotted riding on the London Underground