A spokesman for the British Olympic Association has said his organisation believes a boycott of the Winter Olympics in Sochi would serve only to "penalise athletes".
Darryl Seibel told ITV News that Olympic bosses are monitoring the situation in Russia closely and that the safety of athletes is a top priority.
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In the run-up to the Rio Olympic Games, ITV News speaks to four Olympic hopefuls in Team GB. Today we profile BMX rider Liam Phillips.
The 36-year-old has not been seen or heard from since Thursday evening.
Sophie Neville, cast as Titty as a young child in the 1974 classic Swallows and Amazons, is advising its modern-day adaptation.