Leftist front runner Ivan Cepeda has promised to pursue peace negotiations with illegal armed groups despite little progress of the policy under Colombia’s current president.

Senator Ivan Cepeda is leading two right-wing rivals in the first round of an election dominated by security concerns.

Leftist senator Iván Cepeda, candidate of the ruling Pacto Histórico coalition, was leading on Sunday in the early bulletins of the count in the first round of Colombia's…