UK Anti-Doping (UKAD) has condemned hackers for leaking the medical records of athletes, citing "unnecessary and unwarranted worry".
Olympic gold medallists Laura Trott and Nicola Adams became the latest British athletes to have private information released into the public domain when they featured in the third batch of names whose 'therapeutic use exemptions' (TUEs), held on file by the World Anti-Doping Agency (WADA), were released by cyber espionage group 'Fancy Bears'.
TUEs can be issued to athletes who have an illness or condition which requires the use of medication which is on WADA's prohibited list.
Trott and Adams were joined on the list by swimmer Siobhan-Marie O'Connor and rower Olivia Carnegie-Brown, who both won silver for Team GB at Rio 2016.
There is no suggestion of any wrongdoing by any of the athletes.
UKAD chief executive Nicole Sapstead said: "We absolutely condemn the latest release of personal information pertaining to members of Team GB.
"It is causing unnecessary and unwarranted worry for the athletes affected. We continue to treat this matter with the utmost concern and seriousness, and we are in close contact with WADA."
A WADA statement read: "Stakeholders should know that WADA is being consulted and taking action based on intelligence and advice from the very highest levels of international law enforcement."
Laura Trott, Britain's most successful female Olympian, has overcome adversity to earn her place on top of the podium.Read the full story ›
Laura Trott became the first British woman to win four Olympic gold medals, as Jason Kenny equaled Sir Chris Hoy's British record of six.Read the full story ›
Laura Trott has become the first British woman to win four Olympic gold medals as she stormed to victory in the women's omnium.
The 24-year-old took a commanding 24-point advantage into the points race, which concluded the six-discipline omnium, and rode a masterful race.
Trott, who won team pursuit gold on Saturday, successfully defended the title she won at London 2012.
"I can't believe it," she said afterwards. "I did not expect that at all.
"I'm just so happy that it all came together. I'm over the moon."
The Briton finished with 230 points, ahead of Sarah Hammer of the United States on 206 points and Belgium's Jolien d'Hoore on 199.
Laura Trott is playing down her chances of matching Sir Chris Hoy's record Olympic medal haul.Read the full story ›
In the run-up to the Rio Olympic Games, ITV News speaks to four Olympic hopefuls in Team GB. Today we profile cyclist Laura Trott.Read the full story ›
Laura Trott won her second gold medal of the Track Cycling World Championships in London with victory in the women's omnium on Sunday's final day.
The 23-year-old, who won the non-Olympic scratch race on Thursday, enhanced her advantage with a mature display in the concluding points race to claim Britain's fourth gold of the five-day competition at the Lee Valley VeloPark where she won two Olympic gold medals in 2012.
She now has seven world titles, of which are three individual crowns, and a first omnium world victory since 2012, when she went on to win Olympic gold. She will hope for a repeat in Rio in August.
Laura Trott has announced her engagement to fellow double Olympic cycling champion Jason Kenny.
The couple went public about their relationship during the London 2012 Games, where they won two gold medals apiece.
Essex-born Trott, 22, tweeted the news this morning:
Trott triumphed in the team pursuit and the six-discipline omnium at London 2012, while Kenny was victorious in the team and individual sprints.
They were also both made OBEs in the 2013 New Year Honours.
Olympic cycling hero Jason Kenny said he was "blown away" by the reception he received today as thousands of fans turned out to greet him in his home town.
Wearing his two gold medals around his neck, Kenny was accompanied by his girlfriend and fellow double gold medal-winning cyclist Laura Trott as he greeted supporters outside Bolton Town Hall.
Kenny, who is 24 and won gold in the men's team sprint and the individual sprint at London 2012, also took home gold and silver medals four years ago in Beijing.
His races were shown again on a large screen to loud cheers from the crowd assembled outside, while Kenny also attended a civic reception inside.
British gold medal winning cyclists Laura Trott and Jason Kenny were caught on camera kissing during the women's volleyball final.Read the full story ›