In pictures: Sierra Leone slum

Many families have to pay rent, even for shanty houses that have been built on the land illegally.

As a result others are now trying to build their own houses further out, balancing them on rubbish on top of the sea bed.

“Everybody suffers the same calamity,” says Mohamed Kargbo.

“We’ve used all the land, so we’re building into the sea. It’s a place for poor people.”