UKAD probes Kenya doping claims surrounding British athletes
UK Anti-Doping (Ukad) has sent two investigators to Kenya over its "grave concern" about allegations that British athletes took drugs at a training camp.
The allegations come from a joint investigation by the Sunday Times and German broadcaster ARD/WRD.
They are the latest episode in the drugs scandal which has rocked the world of athletics and powerhouse track and field nations such as Kenya and Russia in the build-up to the Rio 2016 Olympics.
It is claimed that four unnamed British athletes were given banned performance-enhancing drugs by Kenyan doctors.
The alleged doping centres around a high-altitude winter base used by international athletes outside Nairobi.
Ukad chief executive Nicole Sapstead, who said the allegations were of "grave concern and of significant interest", added: "We have opened an investigation and are taking the necessary steps to corroborate the evidence and investigate it further."