“I look forward to working with President-elect Maithripala Sirisena as his new government works to implement its campaign platform of a Sri Lanka that is peaceful, inclusive, democratic, and prosperous,” Mr. Kerry said in a statement soon after Mr. Rajapaksa conceded defeat.

“I commend President Rajapaksa for accepting the results of the election in the proud tradition of peaceful and orderly transfers of power in Sri Lanka. His words tonight about accepting the verdict of the people and moving forward are important,” Mr. Kerry said.

“The Sri Lankan people deserve great credit on the successful conclusion of their elections. They turned out in great numbers to exercise their democratic rights and every vote was a victory for Sri Lanka,” Mr. Kerry said.

“The United States applauds the Sri Lankan Elections Commissioner, the security forces, Sri Lankan civil society, and the candidates themselves for making sure this election was not marred by unrest and for ensuring a significant drop in campaign-related violence. It will be important for that effort to continue in the coming days,” he added.