Artistic gymnast Luiza Galiulina has been suspended from the Olympic Games after failing a drugs test.
Galiulina, of Uzbekistan, tested positive for the banned diuretic furosemide on Wednesday, the International Olympic Committee said.
The 20-year-old had her case heard before an IOC disciplinary commission in London on Saturday and will have a "B" urine sample tested on Sunday.

What is furosemide?

  • Used to induce urination and lower blood pressure
  • The Wada list of 2011 states that the use of substances which are limited for athletes, such as painkiller morphine, alongside such diuretics requires specific exemption
She told the hearing she did not know how the substance had entered her body.
Furosemide is prescribed to induce urination and lower blood pressure but it can act as a masking agent for other drugs.
The IOC said in a statement  that Galiulina had been provisionally suspended "with immediate effect" and a final decision would rest on the result of the second analysis.
It said the gymnast had told the hearing she had been treated by her mother at the end of June when she was sick for two weeks, and she had taken medication for a heart condition on 22 or 23 July.
"The athlete declared she did not take furosemide, but that she knew what it was and its effects," the statement added.
However, the IOC disciplinary commission ruled it was "not comfortably satisfied, as required under article 10.4 of the world anti-doping code, of the absence of an intent to enhance sport performance or mask the use of a performance-enhancing substance".
Galiulina, from Tashkent, was due to be competing at her second Olympic Games.