IAAF president Sebastian Coe has praised the achievements of Mo Farah following his success at the World Athletics Championships.

The 32-year-old was victorious in the 5,000m and the 10,000m in Beijing as he added to his previous gold medals at the 2013 championships and the 2012 Olympic Games.

Farah's preparations for the championships were overshadowed by doping allegations surrounding his coach Alberto Salazar, but Coe has said that his recent triumphs are positive for the sport.

"Mo's progress through the ranks has been spectacular and that's a good thing," Sky Sports News quotes Coe as saying.

"If you look at the medals he has won in major championships and the fact this is now the second time (at a World Championships) that he has successfully doubled up at 5,000m and 10,000m, two particularly arduous events, you would be hard pressed to say that he wasn't the most successful distance runner in terms of medals.

"But there are other things that you need to throw into the balance – world records, times, speeds, all those sorts of things."

Farah's victories at the championships have made him Britain's most successful ever athlete.