"We will continue to plan the meeting," State Department spokeswoman Heather Nauert told reporters, adding that Washington had received "no notification" of a position change by North Korea.
"We have not heard anything from that government or the government of South Korea to indicate we would not continue conducting these exercises or would not continue planning for our meeting between President Trump and Kim Jong Un next month."
South Korea's Yonhap news agency reported that Pyongyang had called the June 12 summit into question over joint military exercises between the US and the South.
Nauert denied that the exercises were provocative, saying: "Kim Jong Un has said he understands the importance to the United States that we conduct these joint exercises. They continue to go on."
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