Mo Farah has completed a double gold medal haul at the World Athletics Championships in Moscow after winning the 5000m following his 10,000m success last week.

The Brit repeated his London 2012 success where he sailed to victory in both events as he ran a perfect race to become only the second man in history to complete an incredible Olympic and world "double double" in the long distance events.

Farah crossed the finishing line in 13 minutes and 26.99 seconds after easing ahead of the valiant Isiah Kiplangat Koech in the closing stages of the race to secure his fifth major championship title, a run which started when he secured a silver medal at the 2011 World Championships.

"I never thought in my career I would achieve something like this," Farah told BBC Sport after his triumph. "This was very tough -it was all left to the last two laps. I had a lot of pressure but at the same time I enjoyed it."

30-year-old Farah rose to the front towards the end of the penultimate lap, fending off the challenge of Koech who appeared to be the Brit's closest challenger throughout the race. The Kenyan had no answer to Farah's blistering break in the last 40m and was forced to settle for third place after losing out to Ethiopia's Hagos Gebrhiwet, who took silver after a photo finish.

"I am very proud to represent my country and hold the Union Jack. To all the people who have me great support I can't thank you enough. Thank you to all the people back home - I am very proud."

Farah's victory followed a marvellous afternoon for Britain's Adam Gemili. The 19-year-old became only the second British man to run under 20 seconds for the 200m in qualifying for Saturday's final, completing the trial in 19.98 seconds, milliseconds behind John Regis's British record of 19.87.