Trump held a 55-minute phone call with Putin on June 14, according to a Kremlin foreign policy adviser.
A signing ceremony will be held on June 19 in Switzerland.
So far, dozens of ships have been redirected or disabled, Central Command said on Sunday.
A ceasefire deal between the U.S. and Iran remains close, Trump said. Israeli strikes on Hezbollah targets in Lebanon shouldn’t have happened, he said.
The right-wing-backed measure lost roughly 55 percent to 45 percent.
Chinese vessels for the first time entered restricted waters around Taiwan-controlled Taiping Island, Taiwan said.
The president is scheduled to meet with leaders from the Middle East in talks at the summit as the United States and Iran finalize a peace deal.
The Pyongyang trip marks the Chinese leader’s first state visit of 2026 and his first to North Korea in seven years.