Swedish photographer Lennart Nilsson, whose pictures of foetuses developing in the womb illustrated a 1965 book that was translated into several languages, has died at the age of 94.

Nilsson's photos of a developing baby first appeared in Life magazine and eventually in the book Ett barn blir till (A Child is Born).

He started as a freelance photographer in the 1940s but later experimented with photographic techniques to take extreme close-ups.

By combining that with very thin endoscopes that became available in the mid-1960s, he was able to take the photos that made him famous.

PA Media