A Vatican official has said the awarding of the Nobel Prize for Medicine to British IVF pioneer Robert Edwards is "completely out of order".

Ignacio Carrasco de Paula, head of the Pontifical Academy for Life, said the award ignored the ethical questions raised by the fertility treatment.

He said IVF had led to the destruction of large numbers of human embryos.

Nearly four million babies have been born using IVF fertility treatment since 1978.