Chad's main opposition candidate, Saleh Kebzabo, on Monday announced he was withdrawing from the country's upcoming presidential elections, accusing veteran leader Idriss Deby Itno of using force to intimidate rivals. In a statement, Kebzabo said he had decided "purely and simply" to quit the April 11 race, a day after two people were killed when security forces tried to arrest another candidate, Yaya Dillo Djerou. yas-dwi-amt/gir/jhd/ri/lc