The family and friends of an 18-year-old girl who died from a rare form of blood cancer have begun an historic tube challenge.

They’re aiming to visit all 272 London Underground stations in a single day in memory of Ruby Fuller.

They hopped on the 5:22am service in Amersham and expect to finish at Heathrow Terminal 5 in the early hours of tomorrow.

Ruby’s mum, Emma Jones, says raising awareness of rare types of childhood cancer is one of the aims.