Audio slideshow: 'Pimp my matatu'

Kenya's minibus taxis, known as matatus - the country's main form of public transport - are renowned for their dangerous driving, blaring out music at deafening volumes and their elaborate, graffiti-style artwork.

The government is trying to clamp down on them and has banned loud music and ordered matatus to have simple colour schemes.

But the industry also creates a large number of jobs and for some young Kenyans, the matatus have become a way of life. Graffiti artist Hassan "Rasta" Mohamed explains why Kenyans started to do up - or "pimp" their buses - and says he will resist the attempts to "destroy the matatu culture".

Photography and audio by the BBC's Joseph Winter and Oscar Bunga. Production by Emma Lynch.