WASHINGTON (Yonhap) ― South Korea’s presidential national security adviser said Tuesday there hasn’t been any clear picture yet of military contributions the United States wants from a coalition of countries in the fight against the Islamic State militants.

Kim Kwan-jin made the remark to reporters after talks with U.S. Deputy Secretary of State William Burns in Washington. It suggests that though Seoul plans in principle to provide humanitarian assistance only, it does not rule out military support.

“The U.S. side called for paying attention to the ISIS and Ebola issues and shared the same view with us,” Kim said. In principle, Kim said, South Korea will consider providing contributions “within the scope of humanitarian support.”

Asked if there was any U.S. request for a military contribution, however, Kim said: “There has yet to be a clear framework (of contributions), military wise.”

Kim said he and Burns also discussed North Korea and its nuclear program, but did not elaborate. Asked whether their discussions included the North’s human rights record, Kim said he believes the issue will be dealt with at the United Nations.

Kim’s visit came as Washington has been trying to drum up international support for its fight against the extremist group.

The U.S. has classified South Korea as a humanitarian contributor, but speculation has grown that Washington could ask for a contribution beyond that.

On Monday, Kim met with U.S. National Security Adviser Susan Rice and outlined Seoul’s plan to provide humanitarian support in the fight against the jihadist group.

That came after Rice stressed the need for South Korea and other allies to provide active support for efforts to defeat the IS and tackle the Ebola virus outbreak.

The White House said in a statement Tuesday that Kim and Rice “affirmed their strong commitment” to the alliance between the two countries, and discussed a number of bilateral, regional and global issues.