An oil rig worker has been training for his first marathon in the middle of the North Sea.

Shawn Overall, 35, from Thorpe End, is running the London Marathon, despite having to train on a treadmill while working in the North Sea.

Always a sports enthusiast, Mr Overall enjoyed boxing training until he turned 18.

Now, he's making his long-distance running debut in Sunday's marathon.

Mr Overall was inspired to run for the Norfolk-based charity World Horse Welfare by his family's love of horses and their work to rescue and rehabilitate neglected equines, even adopting Sinbad from the charity eight years ago.

Mr Overall said: “The work of World Horse Welfare is invaluable, uniting caring people with ponies and horses that deserve a second chance at life.”

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Mr Overall is one of six running the marathon for the charity.

Frances Plume, senior relationship officer at World Horse Welfare, said: “We’d like to say a huge thank you to Shawn and to our other runners, Val, David, Lauren, Nick and Simon for tackling this epic event and wish them the very best of luck.”

Shawn has raised £1,080 of his £1,850 target on his JustGiving page.