Jamaica's 4x100m relay team smashed the world record on Saturday evening
Usain Bolt claimed his third gold medal of the London 2012 Games as Jamaica won the men's 4x100m relay at the Olympic Stadium in a world record time.
The Jamaican quartet of Bolt, Yohan Blake, Nesta Carter and Michael Frater were too good for their nearest rivals, a US team boasting the talents of Tyson Gay and Justin Gatlin, reports the BBC.
Bolt received the baton with Jamaica already in the lead and crossed the line in 36.85 seconds, smashing the previous record of 37.04 secs and Olympic record of 37.10 secs.
Earlier, Britain's Mo Farah joined the sporting greats and produced an unforgettable crescendo to London's Olympics as he added 5,000m gold to his 10,000m title.
In an almost unreal atmosphere inside the Olympic Stadium, Farah went to the front at 600m and was roared down the home straight and into the history books.
Farah's gold was Great Britain's 27th gold medal of these Games.
He produced a last mile of four minutes 00.50 seconds and a final lap of 52.9 secs to hold off Ethiopia's Dejen Gebremeskel and Kenya's Thomas Longosiwa in 13 mins 41.66 secs.
It was not a fast race, but big finals seldom are, and the 29-year-old from west London got his tactics spot on.
Farah, whose wife Tania is due to give birth to twins in the next few weeks, said: "It's unbelievable. I was feeling tired coming into the race. When I took the lead I knew I had to hold on to it.
"Those two medals are for my two girls - they can have one each. I don't know what's going on. Everything has a time and it's all worked out. Two gold medals - who would have thought it?"
A week ago his stunning victory in the 10,000m final had provided a wonderful final act to "Super Saturday".