What an amazing achievement!

A teenage runner with Down's syndrome has made history as the youngest person in his learning disability category to complete a marathon.

Lloyd Martin, 19, whose family is from Cardiff, completed the London Marathon with his mum as his guide.

Guinness World Records created the challenge for Lloyd and awarded him a certificate at the finish.

"In Lloyd's words, it's achieving his dream," said his mum Ceri Hooper, 54.

"Really anything is possible if you put your mind to it," she said. "With a bit of work, you can achieve it."