Kenya’s athletics federation suspended the companies Volare Sports and Rosa & Associati — the agents of Kenyan stars like Dennis Kimetto — from working in the country for six months as it investigated a spike in doping among the country’s runners, but the federation did not make specific accusations against the companies.
A version of this brief appears in print on April 14, 2015, on page B12 of the New York edition with the headline: Kenya Bans 2 Companies. Order Reprints| Today's Paper|Subscribe