Britain’s Callum Priestley has been provisionally suspended from all competition and UK Athletics’ World Class Performance Programme following an anti-doping violation.
Sprint hurdler Priestley, 21, has been suspended under IAAF rules after analysis of his B sample indicated the presence of the asthma drug clenbuterol.
The suspension follows an out-of-competition test in South Africa in January.
Priestley, who won the 60m hurdles at the UK Championships in Sheffield last month, has the opportunity to respond to the charge against him, including the right to a full hearing of the case.
If found guilty, he will face a two-year ban.
UK Athletics chief executive Niels de Vos said: “I am hugely disappointed that there has been a failed test.
“UKA continues to give 100% support to the work of UK Anti Doping
and we maintain our full commitment to drug-free sport.”