Juan Manuel Santos has won re-election in Colombia's most dramatic presidential contest in years.
Mr Santos won nearly 51% of votes and saw off his right-wing challenger Oscar Ivan Zuluaga, who had 45%.
Correspondents say the victory will be seen as an endorsement of the president's ongoing peace talks with the leftist Farc rebel group.
Mr Zuluaga had said he would halt the talks unless the rebels ceased all hostilities.
Mr Santos, 62, will be inaugurated in August for a new four-year term.
"This is the generation of peace. Millions of Colombians have chosen fear over hope," Mr Santos said in an address to supporters at his headquarters.
"Thank you very much, Colombians! Your support means we will have to worker even harder," he said.
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