Olympic silver medallist Michael Jamieson was also at the British Swimming Heroes event at the Gurnell leisure centre in Ealing.
He told Emma Walden that it was an exciting time to be involved in the sport.
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The action comes as a commuters' group goes to court to seek a judicial review of the franchise.
Michael Bond, the creator of Paddington Bear has died at the age of 91.
Rumours on social media prompted the IPCC to take the highly unusual step of releasing details of the preliminary post-mortem examination.