Sprinter Leon Reid has called an end to his bid to represent Ireland or compete under a neutral flag at the World Championships in London.
Last month, the 22 year-old wrote an open letter to IAAF president Seb Coe asking for help in his bid to represent Ireland at the World Championships, but it was unsuccessful.
Following this, the sprinter made an appeal to the IAAF asking to compete in London under a neutral flag, but Reid has confirmed that appeal has also been unsuccessful.
Reid said: “The IAAF has turned down all requests and are unable to consider any possible situations enabling me to compete under either an Irish or a neutral flag.
“It is clear that there was a failure on the part of an individual to respond to an email despite it being received over a month before the IAAF international transfer embargo took effect.”
“This is what makes it so much harder for me. I have done everything in my power to enable my transfer to Ireland athletics since the 22nd June 2017,” he added.
Reid, who competed for Northern Ireland at the 2014 Commonwealth Games, had said he wanted to run for Ireland in honour of his Belfast born biological mother. Reid met the 200m qualifying standard for the World Championships at the recent British trials.