Seven more Kenyan athletes have been banned for doping, with two-time world cross-country champion Emily Chebet among them.
The sanctions announced on Friday by Kenya's athletics federation also included bans for the two runners that failed doping tests at the world championships in Beijing in August.
Chebet, the cross-country world champion in 2010 and 2013, was banned for four years after testing positive for the diuretic and masking agent furosemide.
Joyce Zakary and Koki Manunga, the athletes who failed tests and were provisionally suspended at the worlds, also received four-year bans for furosemide.
There has been a recent spike in doping cases in Kenya and more than 40 athletes have now failed tests since 2012.
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Kenyan track officials are also under scrutiny after allegations of doping cover-ups.
