Fearne Cotton and a host of other celebrities who cycled from John O’Groats to Land’s End have raised their target figure of £1 million, organisers said.

The team reached the finish line on Thursday night, having raised £1,006,509 for Sport Relief so far, a spokeswoman for the charity event said.

They urged the public to keep giving to help them raise still more money.

Those taking part – Fearne, Miranda Hart, Russell Howard, Patrick Kielty, Davina McCall, David Walliams and Jimmy Carr – managed a challenging four-day stint through night and day on their bikes.

Walliams said: “It has been an amazing challenge, so much harder and more gruelling than any of us thought it would be.

“To have raised a million pounds in four days is a fantastic thing – thanks so much for everyone who sponsored us, it kept us going.”

During the non-stop relay ride, the celebrities battled against brutal conditions, including blizzards, snow capped mountains and temperatures as low as minus 15C (5F).

Cycling for nearly 82 hours in total, they suffered falls, cuts, bruises and saddle sores.

Fearne said as the event neared its end: “We know that we need to try and keep something in reserve for the hills in Cornwall but to be honest I’m just running on empty now anyway so we will just have to see how it goes.”

The team’s efforts will help vulnerable people in the UK and some of the world’s poorest countries.