Usain Bolt, who surprised the world with a false start in the men's 100m final at the Daegu worlds Sunday night, said Monday that he was "extremely disappointed" not to have had the chance to defend his title due to the mistake.

In a brief statement, the world's fastest man, who took the gold in the Berlin World Championships in 2009, sent congratulation to his Jamaican teammate Yohan Blake and the other athletes who won the medals.

"I was feeling great through the rounds and was ready to run fast in the final. I worked very hard to get ready for this Championships and things were looking good," he said, referring to his easy wins in the heats and the semi final in the men's 100m.

Bolt continued to say that he had to move on now "as there is no point to dwell on the past".

"I have a few days to refocus and get ready for the 200m on Friday. After this I have the 4x100m and a few other races before the end of the season. I know that I am now in good shape and will focus on running well in the 200m," he said.

"I will try my best to make you proud in the 200m," he added.

In Sunday night's 100m final, Blake snatched the gold. Walter Dix of USA took the silver. Kim Collins, from the Caribbean nation of Saint Kitts and Nevis, collected the bronze.