South Africa under apartheid in the 1970s

In the middle of the 1970s, as cracks were beginning to appear in South Africa's policy of racial segregation, a young photographer set out to record what life was like under such a political system.

Then in his early 20s, Steve Bloom - now better known for his wildlife photography - witnessed the hardships facing black South Africans, and the force used by the authorities to try to quell protest.

His images - some never seen publicly before - are now going on show in central London. Take a look at some of them here.

To see the enhanced content on this page, you need to have JavaScript enabled and Adobe Flash installed.

'Beneath the surface' is at Guardian Gallery in central London from 1 to 28 June 2012. Presented by the London Festival of Photography.

All images copyright Steve Bloom/stevebloomphoto.com. Music by KPM Music.

Slideshow production by Paul Kerley. Publication date 31 May 2012.

Related:

Steve Bloom photographer

London Festival of Photography

The BBC is not responsible for the content of external websites.

More audio slideshows:

The Queen - 60 years of memories

Could Africa save China's tigers?

Snapshots of Jewish life in the UK