The United States is looking for resuming a "more comprehensive" military relationship with Sri Lanka once the Sri Lankan government makes progress towards reconciliation and accountability, a top U.S. official said.

Nisha Desai Biswal, Assistant Secretary, Bureau of South and Central Asian Affairs said that following the March UN Human Rights Council resolution on Sri Lanka, the U.S. continues to call for credible efforts to ensure accountability and justice.

"We look forward to a resumption of a more comprehensive military relationship once the Government of Sri Lanka has made better progress toward reconciliation and accountability," Biswal said delivering a speech at the Harvard University in Boston.

"Sri Lanka has fortunately ended its civil war, though reconciliation has proved challenging," the Assistant Secretary has said.

In March the UNHRC in Geneva adopted a resolution on Sri Lanka sponsored by the United States, the United Kingdom and three other countries requestingthe Office of the High Commissioner for Human Rights (OHCHR) to undertake a comprehensive independent investigation into alleged serious violations and abuses of human rights and related crimes by both parties in Sri Lanka.