In a statement, Greece triple-jumper Voula Papachristou said:
I would like to express my heartfelt apologies for the unfortunate and tasteless joke I published on my personal Twitter account.
I am very sorry and ashamed for the negative responses I triggered, since I never wanted to offend anyone, or to encroach human rights."
My dream is connected to the Olympic Games and I could not possibly participate if I did not respect their values.
Therefore, I could never believe in discrimination between human beings and races.
I would like to apologise to all my friends and fellow athletes, who I may have insulted or shamed, the National Team, as well as the people and companies who support my athletic career.
Finally, I would like to apologise to my coach and my family.
More top news
Caitlyn Jenner insists she said "so many nice things about Kris" in her new memoir which chronicles the history of their relationship.
Detectives are investigating whether a 30-year-old man in Taunton died after taking 'spice', Avon and Somerset Police said.
Morgan Ackerman, 16, was playing "knock, knock ginger" with two friends when he ran out into the road and into the path of a taxi.