NAIROBI — Two Kenyan marathon runners have been banned after positive tests for banned substances following suspensions for three other marathoners from the east African nation last month. Athletics Kenya Secretary General David Okeyo told Reuters Thursday that Salome Jerono Biwott and Jynocel Basweti Onyancha had both been suspended for two years. Last month marathon runners Wilson Erupe Loyanae and Nixon Kiplagat Cherutich were banned for two years while Moses Kiptoo Kurgat was suspended for a year. “The number is growing and we are not happy about the statistics. We only hope that the culprits remain at a manageable level,” Okeyo said. — Reuters