Battersea company SixT have donated the use of one of their vehicles to help four runners complete an "ultra" marathon challenge, raising money for Sport Relief.

Colleagues Alexis Haycock-Hadden, Elizabeth Pencavel, Lily Howson and Joanne Lea started their London to Cardiff running challenge on Saturday.

SixT have donated a support van for the runners during their marathon effort.

The foursome started the 165-mile route on Saturday and will pass through Windsor, Reading, Swindon, Bristol and Newport, before arriving at Cardiff city centre on the afternoon of Friday, October 15.

For more information on their challenge, visit www.londontocardiff.com.