When 10-year-old MacKenzie Baker heard his baby cousin was fighting for his life, he wanted to do everything he could do help.

One-month-old Grayson Robinson was born with a heart defect and suffered a stroke shortly after, spent the first four weeks of his life in intensive care at Great Ormond Street Hospital (GOSH) in London and is now on a ward recovering from open heart surgery.

So schoolboy MacKenzie, of Cavell Road, Norwich, asked his mum Amy Baker to help him organise a charity 5km run from his house to Notcutts garden centre and back.

It aims to raise as much money as possible for GOSH, and dozens of people will today complete the run to raise money for GOSH.

Grayson's parents Laura Baker and Mark Robinson, who have three other children, are still at the hospital.

Originally from Norwich, they are moving back to the city when Grayson is well enough so they have the support of family nearby.

Amy Baker, 31, who is Laura Baker's sister-in-law, said her son MacKenzie came up with the charity idea on his own, and the community spirit of the area had helped.

Staff at nearby Pod hair salon, in Long John Hill, are among those who have got involved.

'They've been amazing,' said Mrs Baker. 'You can't fault them. 'Everyone offered their sympathy first, then went above and beyond to help.

'There are quite a few families that have been in similar situations and they can relate.'

It had been a difficult time for the family, but with the help of GOSH Grayson's condition was improving.

'It's really worrying, especially with the distance,' added Mrs Baker. 'We're trying to get the family a place in Norwich as soon as possible as they will need all our support.

'It's been tough and we take every day as it comes.'

The run is planned for around 1pm today, and there will also be a raffle on the green off Cavell Road, and two of Grayson's uncles will have their legs waxed for charity.

Mrs Baker added that her 'little soldier' Mackenzie felt helpless when he heard about his cousin and this was his way of supporting him.

To donate, see justgiving.com/Amy-Baker17