U.S. President Donald Trump and his South Korean counterpart held a summit in New York on Monday to discuss plans to restart U.S.-North Korea talks, as the allies hold discussions in Seoul on sharing the cost of American soldiers stationed in South Korea.

Though negotiations with North Korea have stalled since a failed second summit between Trump and its leader Kim Jong Un in February, the North has said it is willing to restart working-level talks in late September. However, no date or location have been set.

South Korea's spy agency, however, said Tuesday that the U.S. and North are expected to resume the working-level talks within two or three weeks, the Yonhap News Agency reported.