The next phase of peace talks is uncertain after Iran says it has "no plans for the next round" of negotiations.

By Steve Holland, Enas Alashray and Mubasher Bukhari WASHINGTON/CAIRO/ISLAMABAD, April 21 (Reuters) - The United States expressed confidence that peace talks with Iran would go ahead in Pakistan and a senior Iranian official said Tehran was considering joining,

The ceasefire agreement between the U.S. and Iran ends Tuesday. President Trump says a U.S. delegation is going to Pakistan for talks, but Iran hasn't confirmed their attendance.

Two regional officials said Tuesday that the United States and Iran have signaled they will hold a new round of ceasefire talks in Islamabad as a fragile two-week truce was due to expire. Labor Secretary Lori Chavez-DeRemer is leaving Trump’s Cabinet after abuse of power allegations Pennsylvania court overturns limits on Medicaid coverage for abortions Businesses can begin claiming refunds for Trump tariffs declared unconstitutional FBI Director Kash Patel sues The Atlantic for article that alleged excessive drinking Wildfire survivors who lost their homes could face another blow from taxes on settlement payouts Neither the U.

Follow NBC News live coverage of the U.S. seizing an Iranian ship, Trump's blockade and the Strait of Hormuz, peace talks in Pakistan and Israel-Lebanon.

Iran's military said on Saturday the Strait of Hormuz has "returned to its previous state." The announcement came after President Trump had said the blockade on Iranian ports would remain in place.

Pakistan pressed ahead Tuesday with the groundwork for a second round of talks between Iran and the United States in Islamabad as a fragile ceasefire hung in the balance, even though it remained unclear whether Tehran would send a delegation.