Jamaican sprinter Usain Bolt has paid tribute to the "great" London crowd after competing in the Diamond League Anniversary Games athletics meeting at the Olympic Stadium.
He posted a tweet on his Twitter page:
A great few days in London.. The fans were great .. Pure Jamaican energy.. Feel so bless to share… http://t.co/AkdHlL2rKo
Bolt, who won three golds in London last summer, won the 100m event yesterday and today teamed up with his fellow countrymen to win the 4x100m relay.