麻豆约拍

This weekend thousands of runners will take part in the London Marathon. But for one family from Annahilt in County Down their dreams of taking part have been dashed. David and Sandra Kerr push their son Aaron around the course in his adapted wheelchair.

They've competed in 35 full marathons but won't be able to take part in London. They've accused marathon organisers of discrimination.

Peter Coulter has been on a training run with them